Robert McGregor <robert_mcgregor@knickers.yahoo.com.au> wrote in message
news:43790580$1_1@news.iprimus.com.au...
>
> "stuart" <fred@nospam.com> wrote in message
> news:O25ef.143119$Io.124559@clgrps13...
> > Don't ask me how I know this. I can't tell you.
>
> Stuart, you're a clown, even when you don't purport to be, although
> this time you forgot your hilarious, "trust me!"
>
> Perhaps, given your multiple personality confusion, you aren't yet
> game to say, "trust we"
>
> Bob

It went way over your head Bob, thank goodness.




>
>
>

"stuart" <fred@nospam.com> wrote in message
news:y62ef.196634$ir4.55739@edtnps90...
>
> Actually, the difference in harm between pot and crack is mainly in
> its
> street price. It's easier to get rid of a crack habit than to stop
> smoking
> pot. The pot high also lasts for hours at a time as it is an oil
> soluable
> drug. Much more subtly damaging. Anyone who labels pot as a
> "relatively
> innocuous" drug is kidding themselves and probably not smoked any
> recently.
> The newer strains are 20X more potent than when you were a teenager in
> the
> 50's...............


source please?

>
> In relatively trivial doses. However, if one gets addicted to any of
> the
> above foods and consumes signifigant daily amounts of any particular
> item,
> the probability of developing problems goes up...
>
>
>>


you are talking about HUGE daily amounts.......................HUGE!

stuart wrote:

>Ken <nospam@nowhere.org> wrote in message
>news:S8WdnUid4pAQfuXenZ2dnUVZ_sidnZ2d@comcast.com ...
>
>
>>stuart wrote:
>>
>>
>>
>>>Dan McGown <dmcgown@adelphia.net> wrote in message
>>>news:VaGdnYZvb8cSR-XenZ2dnUVZ_sadnZ2d@adelphia.com...
>>>
>>>
>>>
>>>
>>>>Stuart,
>>>> Crack is the most destructive drug that I have ever seen. I've
>>>>
>>>>
>seen
>
>
>>>>people quit alcohol, pot, heroin and even cigarettes, but I've only seen
>>>>people pause in their crack addiction while they were institutionalized.
>>>> In jail, the crack-hookers only look something like normal if
>>>>
>>>>
>they've
>
>
>>>>been incarcerated for four or five months. Otherwise, they weigh about
>>>>
>>>>
>95
>
>
>>>>pounds and lost the weight so fast that they have "flap tits" -- empty
>>>>
>>>>
>>>>
>>>>
>>>skin
>>>
>>>
>>>
>>>
>>>>hanging there. If they've been smoking crack for a substantial time,
>>>>
>>>>
>they
>
>
>>>>are losing their teeth and walk with an exaggerated, artificial stride
>>>>because their motor control becomes impaired. They don't quit; they
>>>>
>>>>
>die.
>
>
>>>> Whatever else one says about pot, it doesn't kill people.
>>>> Crack, on the other hand, is like full blown AIDS. It's someone
>>>>wasting away and waiting to die a degrading death.
>>>> Dan
>>>>
>>>>
>>>>
>>>>
>>>All quite true Dan, except but pot kills too. Smoking "a" cigarette is
>>>unlikely to kill either. Pot kills slowly and its way more carcinogenic.
>>>Addiction to crack comes far quicker. Both create varying degrees of
>>>psychological dependence mainly. Crack is more acutely addictive, but
>>>
>>>
>after
>
>
>>>a time, it doesn't work as well as tolerance is created. Pot, as you know
>>>takes longer to get addicted to, or I would rather use the term
>>>"psychological dependence".
>>>Pot addictions can last for many years, whereas most crack addicts are
>>>either dead, or off the stuff in two or three years.
>>>
>>>Don't ask me how I know this. I can't tell you. In part due to close
>>>personal experiences. People do quit crack. I did.
>>>
>>>
>>>
>>>
>>>
>>>
>>Stuart,
>>
>>I just looked up "carcinogens coffee" on google. I followed that with
>>"mutagens coffee." You might be interested to know that not only coffee
>>causes birth defects (contains mutagens) but so do cranberries, sweet
>>potatoes, mushrooms and nuts.
>>
>>Here is a brief list of foods and the poisons they contain:
>>
>>Don't let "rodent carcinogen" fool you. Substances are tested on
>>rodents to find out if they are carcinogenic because it is illegal to
>>test such dangerous chemicals on people.
>>
>>*CHEMICAL*
>>*WHERE IS IT?*
>>*WHAT IS IT?*
>>ACETALDEHYDE Apples, tomatoes Mutagen and potent rodent carcinogen
>>AFLATOXIN Nuts Mutagen, potent rodent carcinogen, human carcinogen
>>ALLYL ISOTHIOCYANATE Arugula, broccoli, mustard Mutagen, rodent
>>carcinogen
>>ANILINE Carrots Rodent carcinogen
>>BENZALDEHYDE Apples, coffee, tomatoes Rodent carcinogen
>>BENZENE Coffee Rodent carcinogen
>>BENZO(A)PYRENE Bread, coffee, pumpkin pie, rolls, tea Mutagen and
>>rodent carcinogen
>>BENZOFURAN Coffee Rodent carcinogen
>>BENZYL ACETATE Jasmine tea Rodent carcinogen
>>CAFFEIC ACID Apples, carrots, celery, coffee, pears, grapes, lettuce,
>>mangos, potatoes Rodent carcinogen
>>CATECHOL Coffee Rodent carcinogen
>>D-LIMONENE Black pepper, mango Rodent carcinogen
>>1,2,5,6-DIBENZ(A)ANTHRACENE Coffee Rodent carcinogen
>>ESTRAGOLE Apples, basil Rodent carcinogen
>>ETHYL ALCOHOL Bread, red wine, rolls, tomatoes Rodent and human
>>carcinogen
>>ETHYL BENZENE Coffee Rodent carcinogen
>>ETHYL CARBAMATE Bread, rolls, red wine Mutagen and rodent carcinogen
>>FURAN AND FURAN DERIVATIVES Bread, onions, celery, mushrooms, sweet
>>potatoes, rolls, cranberry sauce, coffee Many are mutagens
>>FURFURAL Bread, coffee, nuts, rolls, sweet potatoes Furan derivative
>>and rodent carcinogen
>>HETEROCYCLIC AMINES Roast beef, turkey Mutagens and rodent carcinogens
>>HYDRAZINES Mushrooms Mutagens and rodent carcinogens
>>HYDROGEN PEROXIDE Coffee, tomatoes Mutagen and rodent carcinogen
>>HYDROQUINONE Coffee Rodent carcinogen
>>METHYLGLYOXAL Coffee, red wine Mutagen and rodent carcinogen
>>PSORALENS Celery, parsley Mutagens, rodent and human carcinogens
>>QUERCETIN GLYCOSIDES Apples, onions, tea, tomatoes Mutagens and rodent
>>carcinogens
>>SAFROLE Nutmeg in apple and pumpkin pies, black pepper Rodent carcinogen
>>SYMPHYTINE Comfrey tea Rodent carcinogen
>>
>>
>> And Safeway is allowed to sell all these poisons openly!!!!!
>>
>>
>
>In relatively trivial doses. However, if one gets addicted to any of the
>above foods and consumes signifigant daily amounts of any particular item,
>the probability of developing problems goes up...
>
>
>
Stuart,

Are you saying that the harmful effects of substances like cabbages,
marijuana and spinach are directly purportional to the amount consumed?
If so, I can't argue with that but it strikes me as odd that you seem to
have a phobia of vegetables.

Ken Ragge
http://www.morerevealed.com

>
>
>>Ken Ragge
>>http://www.morerevealed.com
>>
>>
>
>
>
>

stuart wrote:
> Ken <nospam@nowhere.org> wrote in message
> news:S8WdnUid4pAQfuXenZ2dnUVZ_sidnZ2d@comcast.com. ..
>
>>stuart wrote:
>>
>>
>>>Dan McGown <dmcgown@adelphia.net> wrote in message
>>>news:VaGdnYZvb8cSR-XenZ2dnUVZ_sadnZ2d@adelphia.com...
>>>
>>>
>>>
>>>>Stuart,
>>>> Crack is the most destructive drug that I have ever seen. I've
>
> seen
>
>>>>people quit alcohol, pot, heroin and even cigarettes, but I've only seen
>>>>people pause in their crack addiction while they were institutionalized.
>>>> In jail, the crack-hookers only look something like normal if
>
> they've
>
>>>>been incarcerated for four or five months. Otherwise, they weigh about
>
> 95
>
>>>>pounds and lost the weight so fast that they have "flap tits" -- empty
>>>>
>>>>
>>>
>>>skin
>>>
>>>
>>>
>>>>hanging there. If they've been smoking crack for a substantial time,
>
> they
>
>>>>are losing their teeth and walk with an exaggerated, artificial stride
>>>>because their motor control becomes impaired. They don't quit; they
>
> die.
>
>>>> Whatever else one says about pot, it doesn't kill people.
>>>> Crack, on the other hand, is like full blown AIDS. It's someone
>>>>wasting away and waiting to die a degrading death.
>>>> Dan
>>>>
>>>>
>>>
>>>All quite true Dan, except but pot kills too. Smoking "a" cigarette is
>>>unlikely to kill either. Pot kills slowly and its way more carcinogenic.
>>>Addiction to crack comes far quicker. Both create varying degrees of
>>>psychological dependence mainly. Crack is more acutely addictive, but
>
> after
>
>>>a time, it doesn't work as well as tolerance is created. Pot, as you know
>>>takes longer to get addicted to, or I would rather use the term
>>>"psychological dependence".
>>>Pot addictions can last for many years, whereas most crack addicts are
>>>either dead, or off the stuff in two or three years.
>>>
>>>Don't ask me how I know this. I can't tell you. In part due to close
>>>personal experiences. People do quit crack. I did.
>>>
>>>
>>>
>>>
>>
>>Stuart,
>>
>>I just looked up "carcinogens coffee" on google. I followed that with
>>"mutagens coffee." You might be interested to know that not only coffee
>>causes birth defects (contains mutagens) but so do cranberries, sweet
>>potatoes, mushrooms and nuts.
>>
>>Here is a brief list of foods and the poisons they contain:
>>
>>Don't let "rodent carcinogen" fool you. Substances are tested on
>>rodents to find out if they are carcinogenic because it is illegal to
>>test such dangerous chemicals on people.
>>
>>*CHEMICAL*
>>*WHERE IS IT?*
>>*WHAT IS IT?*
>>ACETALDEHYDE Apples, tomatoes Mutagen and potent rodent carcinogen
>>AFLATOXIN Nuts Mutagen, potent rodent carcinogen, human carcinogen
>>ALLYL ISOTHIOCYANATE Arugula, broccoli, mustard Mutagen, rodent
>>carcinogen
>>ANILINE Carrots Rodent carcinogen
>>BENZALDEHYDE Apples, coffee, tomatoes Rodent carcinogen
>>BENZENE Coffee Rodent carcinogen
>>BENZO(A)PYRENE Bread, coffee, pumpkin pie, rolls, tea Mutagen and
>>rodent carcinogen
>>BENZOFURAN Coffee Rodent carcinogen
>>BENZYL ACETATE Jasmine tea Rodent carcinogen
>>CAFFEIC ACID Apples, carrots, celery, coffee, pears, grapes, lettuce,
>>mangos, potatoes Rodent carcinogen
>>CATECHOL Coffee Rodent carcinogen
>>D-LIMONENE Black pepper, mango Rodent carcinogen
>>1,2,5,6-DIBENZ(A)ANTHRACENE Coffee Rodent carcinogen
>>ESTRAGOLE Apples, basil Rodent carcinogen
>>ETHYL ALCOHOL Bread, red wine, rolls, tomatoes Rodent and human
>>carcinogen
>>ETHYL BENZENE Coffee Rodent carcinogen
>>ETHYL CARBAMATE Bread, rolls, red wine Mutagen and rodent carcinogen
>>FURAN AND FURAN DERIVATIVES Bread, onions, celery, mushrooms, sweet
>>potatoes, rolls, cranberry sauce, coffee Many are mutagens
>>FURFURAL Bread, coffee, nuts, rolls, sweet potatoes Furan derivative
>>and rodent carcinogen
>>HETEROCYCLIC AMINES Roast beef, turkey Mutagens and rodent carcinogens
>>HYDRAZINES Mushrooms Mutagens and rodent carcinogens
>>HYDROGEN PEROXIDE Coffee, tomatoes Mutagen and rodent carcinogen
>>HYDROQUINONE Coffee Rodent carcinogen
>>METHYLGLYOXAL Coffee, red wine Mutagen and rodent carcinogen
>>PSORALENS Celery, parsley Mutagens, rodent and human carcinogens
>>QUERCETIN GLYCOSIDES Apples, onions, tea, tomatoes Mutagens and rodent
>>carcinogens
>>SAFROLE Nutmeg in apple and pumpkin pies, black pepper Rodent carcinogen
>>SYMPHYTINE Comfrey tea Rodent carcinogen
>>
>>
>> And Safeway is allowed to sell all these poisons openly!!!!!
>
>
> In relatively trivial doses. However, if one gets addicted to any of the
> above foods and consumes signifigant daily amounts of any particular item,
> the probability of developing problems goes up...
>
>
>
>>Ken Ragge
>>http://www.morerevealed.com
>
>
>
I like you stuart. I like you alot. You've
helped me alot with alot of my issues. This one
we agree to disagree

Ken <nospam@nowhere.org> wrote in message
news:etqdnWUu_uXKt-TeRVn-vA@comcast.com...
> stuart wrote:
>
> >Ken <nospam@nowhere.org> wrote in message
> >news:S8WdnUid4pAQfuXenZ2dnUVZ_sidnZ2d@comcast.com ...
> >
> >
> >>stuart wrote:
> >>
> >>
> >>
> >>>Dan McGown <dmcgown@adelphia.net> wrote in message
> >>>news:VaGdnYZvb8cSR-XenZ2dnUVZ_sadnZ2d@adelphia.com...
> >>>
> >>>
> >>>
> >>>
> >>>>Stuart,
> >>>> Crack is the most destructive drug that I have ever seen. I've
> >>>>
> >>>>
> >seen
> >
> >
> >>>>people quit alcohol, pot, heroin and even cigarettes, but I've only
seen
> >>>>people pause in their crack addiction while they were
institutionalized.
> >>>> In jail, the crack-hookers only look something like normal if
> >>>>
> >>>>
> >they've
> >
> >
> >>>>been incarcerated for four or five months. Otherwise, they weigh
about
> >>>>
> >>>>
> >95
> >
> >
> >>>>pounds and lost the weight so fast that they have "flap tits" -- empty
> >>>>
> >>>>
> >>>>
> >>>>
> >>>skin
> >>>
> >>>
> >>>
> >>>
> >>>>hanging there. If they've been smoking crack for a substantial time,
> >>>>
> >>>>
> >they
> >
> >
> >>>>are losing their teeth and walk with an exaggerated, artificial stride
> >>>>because their motor control becomes impaired. They don't quit; they
> >>>>
> >>>>
> >die.
> >
> >
> >>>> Whatever else one says about pot, it doesn't kill people.
> >>>> Crack, on the other hand, is like full blown AIDS. It's someone
> >>>>wasting away and waiting to die a degrading death.
> >>>> Dan
> >>>>
> >>>>
> >>>>
> >>>>
> >>>All quite true Dan, except but pot kills too. Smoking "a" cigarette is
> >>>unlikely to kill either. Pot kills slowly and its way more
carcinogenic.
> >>>Addiction to crack comes far quicker. Both create varying degrees of
> >>>psychological dependence mainly. Crack is more acutely addictive, but
> >>>
> >>>
> >after
> >
> >
> >>>a time, it doesn't work as well as tolerance is created. Pot, as you
know
> >>>takes longer to get addicted to, or I would rather use the term
> >>>"psychological dependence".
> >>>Pot addictions can last for many years, whereas most crack addicts are
> >>>either dead, or off the stuff in two or three years.
> >>>
> >>>Don't ask me how I know this. I can't tell you. In part due to close
> >>>personal experiences. People do quit crack. I did.
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>Stuart,
> >>
> >>I just looked up "carcinogens coffee" on google. I followed that with
> >>"mutagens coffee." You might be interested to know that not only coffee
> >>causes birth defects (contains mutagens) but so do cranberries, sweet
> >>potatoes, mushrooms and nuts.
> >>
> >>Here is a brief list of foods and the poisons they contain:
> >>
> >>Don't let "rodent carcinogen" fool you. Substances are tested on
> >>rodents to find out if they are carcinogenic because it is illegal to
> >>test such dangerous chemicals on people.
> >>
> >>*CHEMICAL*
> >>*WHERE IS IT?*
> >>*WHAT IS IT?*
> >>ACETALDEHYDE Apples, tomatoes Mutagen and potent rodent carcinogen
> >>AFLATOXIN Nuts Mutagen, potent rodent carcinogen, human carcinogen
> >>ALLYL ISOTHIOCYANATE Arugula, broccoli, mustard Mutagen, rodent
> >>carcinogen
> >>ANILINE Carrots Rodent carcinogen
> >>BENZALDEHYDE Apples, coffee, tomatoes Rodent carcinogen
> >>BENZENE Coffee Rodent carcinogen
> >>BENZO(A)PYRENE Bread, coffee, pumpkin pie, rolls, tea Mutagen and
> >>rodent carcinogen
> >>BENZOFURAN Coffee Rodent carcinogen
> >>BENZYL ACETATE Jasmine tea Rodent carcinogen
> >>CAFFEIC ACID Apples, carrots, celery, coffee, pears, grapes, lettuce,
> >>mangos, potatoes Rodent carcinogen
> >>CATECHOL Coffee Rodent carcinogen
> >>D-LIMONENE Black pepper, mango Rodent carcinogen
> >>1,2,5,6-DIBENZ(A)ANTHRACENE Coffee Rodent carcinogen
> >>ESTRAGOLE Apples, basil Rodent carcinogen
> >>ETHYL ALCOHOL Bread, red wine, rolls, tomatoes Rodent and human
> >>carcinogen
> >>ETHYL BENZENE Coffee Rodent carcinogen
> >>ETHYL CARBAMATE Bread, rolls, red wine Mutagen and rodent carcinogen
> >>FURAN AND FURAN DERIVATIVES Bread, onions, celery, mushrooms, sweet
> >>potatoes, rolls, cranberry sauce, coffee Many are mutagens
> >>FURFURAL Bread, coffee, nuts, rolls, sweet potatoes Furan derivative
> >>and rodent carcinogen
> >>HETEROCYCLIC AMINES Roast beef, turkey Mutagens and rodent carcinogens
> >>HYDRAZINES Mushrooms Mutagens and rodent carcinogens
> >>HYDROGEN PEROXIDE Coffee, tomatoes Mutagen and rodent carcinogen
> >>HYDROQUINONE Coffee Rodent carcinogen
> >>METHYLGLYOXAL Coffee, red wine Mutagen and rodent carcinogen
> >>PSORALENS Celery, parsley Mutagens, rodent and human carcinogens
> >>QUERCETIN GLYCOSIDES Apples, onions, tea, tomatoes Mutagens and rodent
> >>carcinogens
> >>SAFROLE Nutmeg in apple and pumpkin pies, black pepper Rodent carcinogen
> >>SYMPHYTINE Comfrey tea Rodent carcinogen
> >>
> >>
> >> And Safeway is allowed to sell all these poisons openly!!!!!
> >>
> >>
> >
> >In relatively trivial doses. However, if one gets addicted to any of the
> >above foods and consumes signifigant daily amounts of any particular
item,
> >the probability of developing problems goes up...
> >
> >
> >
> Stuart,
>
> Are you saying that the harmful effects of substances like cabbages,
> marijuana and spinach are directly purportional to the amount consumed?
> If so, I can't argue with that but it strikes me as odd that you seem to
> have a phobia of vegetables.

I have a copy of "Call any vegetable" by Frank Zappa, dude...:-(


>
> Ken Ragge
> http://www.morerevealed.com
>
> >
> >
> >>Ken Ragge
> >>http://www.morerevealed.com
> >>
> >>
> >
> >
> >
> >

"rosie read n' post" <readandpost@yahoo.com> wrote in message
news:lt9ef.11234$tK.2043@tornado.rdc-kc.rr.com...
>
>>
>> In relatively trivial doses. However, if one gets addicted to any of the
>> above foods and consumes signifigant daily amounts of any particular
>> item,
>> the probability of developing problems goes up...
>>
>>
>>>
>
>
> you are talking about HUGE daily amounts.......................HUGE!

Well, not necessarily. Sometimes moderate amounts of certain foods, if
consumed regularily in susceptible patients can cause problems. I once heard
a colleague put forward the proposal that sometimes we crave the foods we
are allergic to due to the "kick" they provide. Of course we are not
discussing strictly mutagenicity or carcenogenic properties here, but I
think it is generally accepted that the pathenogenisis of allergy and
malignancy are interrelated at the histiological level.

the magic word is SUSCEPTIBLE....................

--

WMD's
http://img495.imageshack.us/full.php?image=wmd5ph.gif






"stuart" <ggo@feds.org> wrote in message
news:7npef.124033$yS6.15801@clgrps12...
>
> "rosie read n' post" <readandpost@yahoo.com> wrote in message
> news:lt9ef.11234$tK.2043@tornado.rdc-kc.rr.com...
>>
>>>
>>> In relatively trivial doses. However, if one gets addicted to any of
>>> the
>>> above foods and consumes signifigant daily amounts of any particular
>>> item,
>>> the probability of developing problems goes up...
>>>
>>>
>>>>
>>
>>
>> you are talking about HUGE daily amounts.......................HUGE!
>
> Well, not necessarily. Sometimes moderate amounts of certain foods, if
> consumed regularily in susceptible patients can cause problems. I once
> heard a colleague put forward the proposal that sometimes we crave the
> foods we are allergic to due to the "kick" they provide. Of course we
> are not discussing strictly mutagenicity or carcenogenic properties
> here, but I think it is generally accepted that the pathenogenisis of
> allergy and malignancy are interrelated at the histiological level.
>

stuart wrote:

>"rosie read n' post" <readandpost@yahoo.com> wrote in message
>news:lt9ef.11234$tK.2043@tornado.rdc-kc.rr.com...
>
>
>>>In relatively trivial doses. However, if one gets addicted to any of the
>>>above foods and consumes signifigant daily amounts of any particular
>>>item,
>>>the probability of developing problems goes up...
>>>
>>>
>>>
>>>
>>you are talking about HUGE daily amounts.......................HUGE!
>>
>>
>
>Well, not necessarily. Sometimes moderate amounts of certain foods, if
>consumed regularily in susceptible patients can cause problems. I once heard
>a colleague put forward the proposal that sometimes we crave the foods we
>are allergic to due to the "kick" they provide. Of course we are not
>discussing strictly mutagenicity or carcenogenic properties here, but I
>think it is generally accepted that the pathenogenisis of allergy and
>malignancy are interrelated at the histiological level.
>
>
>
Stuart,

It seems if nothing else, you've got a great knack of using a lot of
words to say nothing. Care to give us a lecture on the wonders of
astrology?

Ken Ragge
http://www.morerevealed.com

The "cancer" part is untrue. I just read a new updated article on the
effects of marijuana v.s. lung cancer. Marijuana does not cause lung cancer,
scientists have confirmed that.

I suffer from chronic pain. I'd rather smoke marijuana for my pain than
take the strong narcotics the doctors prescribe. You seem to look at all
the negatives about marijuana. There are good points too. I personally do
not know anybody who "died" because of pot yet I know plenty others who died
because of narcotics and alcohol..... I'd actually like to see booze made
ILLEGAL and pot made legal, for chronic pain and other illnesses.

Put that in your pipe and smoke it. : )


"stuart" <fred@nospam.com> wrote in message
news:3bUdf.122671$yS6.47579@clgrps12...
> Effects on the Brain
>
> Scientists have learned a great deal about how THC acts in the brain to
> produce its many effects. When someone smokes marijuana, THC rapidly
> passes
> from the lungs into the bloodstream, which carries the chemical to organs
> throughout the body, including the brain.
>
> In the brain, THC connects to specific sites called cannabinoid receptors
> on
> nerve cells and influences the activity of those cells. Some brain areas
> have many cannabinoid receptors; others have few or none. Many cannabinoid
> receptors are found in the parts of the brain that influence pleasure,
> memory, thought, concentration, sensory and time perception, and
> coordinated
> movement(5).
>
> The short-term effects of marijuana can include problems with memory and
> learning; distorted perception; difficulty in thinking and problem
> solving;
> loss of coordination; and increased heart rate. Research findings for
> long-term marijuana use indicate some changes in the brain similar to
> those
> seen after long-term use of other major drugs of abuse. For example,
> cannabinoid (THC or synthetic forms of THC) withdrawal in chronically
> exposed animals leads to an increase in the activation of the
> stress-response system(6) and changes in the activity of nerve cells
> containing dopamine(7). Dopamine neurons are involved in the regulation of
> motivation and reward, and are directly or indirectly affected by all
> drugs
> of abuse.
>
>
> Effects on the Heart
>
> One study has indicated that a user's risk of heart attack more than
> quadruples in the first hour after smoking marijuana(8). The researchers
> suggest that such an effect might occur from marijuana's effects on blood
> pressure and heart rate and reduced oxygen-carrying capacity of blood.
>
>
> Effects on the Lungs
>
> A study of 450 individuals found that people who smoke marijuana
> frequently
> but do not smoke tobacco have more health problems and miss more days of
> work than nonsmokers(9). Many of the extra sick days among the marijuana
> smokers in the study were for respiratory illnesses.
>
> Even infrequent use can cause burning and stinging of the mouth and
> throat,
> often accompanied by a heavy cough. Someone who smokes marijuana regularly
> may have many of the same respiratory problems that tobacco smokers do,
> such
> as daily cough and phlegm production, more frequent acute chest illness, a
> heightened risk of lung infections, and a greater tendency to obstructed
> airways(10). Smoking marijuana increases the likelihood of developing
> cancer
> of the head or neck, and the more marijuana smoked the greater the
> increase(11). A study comparing 173 cancer patients and 176 healthy
> individuals produced strong evidence that marijuana smoking doubled or
> tripled the risk of these cancers.
>
> Marijuana use also has the potential to promote cancer of the lungs and
> other parts of the respiratory tract because it contains irritants and
> carcinogens(12, 13). In fact, marijuana smoke contains 50 to 70 percent
> more
> carcinogenic hydrocarbons than does tobacco smoke(14). It also produces
> high
> levels of an enzyme that converts certain hydrocarbons into their
> carcinogenic form-levels that may accelerate the changes that ultimately
> produce malignant cells(15). Marijuana users usually inhale more deeply
> and
> hold their breath longer than tobacco smokers do, which increases the
> lungs'
> exposure to carcinogenic smoke. These facts suggest that, puff for puff,
> smoking marijuana may increase the risk of cancer more than smoking
> tobacco.
>
>
> Other Health Effects
>
> Some of marijuana's adverse health effects may occur because THC impairs
> the
> immune system's ability to fight off infectious diseases and cancer. In
> laboratory experiments that exposed animal and human cells to THC or other
> marijuana ingredients, the normal disease-preventing reactions of many of
> the key types of immune cells were inhibited(16). In other studies, mice
> exposed to THC or related substances were more likely than unexposed mice
> to
> develop bacterial infections and tumors(17, 18).
>
>
> Effects of Heavy Marijuana Use on Learning and Social Behavior
>
> Depression(19), anxiety(20), and personality disturbances(21) have been
> associated with marijuana use. Research clearly demonstrates that
> marijuana
> has potential to cause problems in daily life or make a person's existing
> problems worse. Because marijuana compromises the ability to learn and
> remember information, the more a person uses marijuana the more he or she
> is
> likely to fall behind in accumulating intellectual, job, or social skills.
> Moreover, research has shown that marijuana's adverse impact on memory and
> learning can last for days or weeks after the acute effects of the drug
> wear
> off(22, 23).
>
> Students who smoke marijuana get lower grades and are less likely to
> graduate from high school, compared with their non-smoking peers(24, 25,
> 26,
> 27). A study of 129 college students found that, for heavy users of
> marijuana (those who smoked the drug at least 27 of the preceding 30
> days),
> critical skills related to attention, memory, and learning were
> significantly impaired even after they had not used the drug for at least
> 24
> hours(28). The heavy marijuana users in the study had more trouble
> sustaining and shifting their attention and in registering, organizing,
> and
> using information than did the study participants who had used marijuana
> no
> more than 3 of the previous 30 days. As a result, someone who smokes
> marijuana every day may be functioning at a reduced intellectual level all
> of the time.
>
> More recently, the same researchers showed that the ability of a group of
> long-term heavy marijuana users to recall words from a list remained
> impaired for a week after quitting, but returned to normal within 4
> weeks(29). Thus, it is possible that some cognitive abilities may be
> restored in individuals who quit smoking marijuana, even after long-term
> heavy use.
>
> Workers who smoke marijuana are more likely than their coworkers to have
> problems on the job. Several studies associate workers' marijuana smoking
> with increased absences, tardiness, accidents, workers' compensation
> claims,
> and job turnover. A study of municipal workers found that those who used
> marijuana on or off the job reported more "withdrawal behaviors"-such as
> leaving work without permission, daydreaming, spending work time on
> personal
> matters, and shirking tasks-that adversely affect productivity and
> morale(30). In another study, marijuana users reported that use of the
> drug
> impaired several important measures of life achievement including
> cognitive
> abilities, career status, social life, and physical and mental health(31).
>
>
> Effects on Pregnancy
>
> Research has shown that babies born to women who used marijuana during
> their
> pregnancies display altered responses to visual stimuli, increased
> tremulousness, and a high-pitched cry, which may indicate neurological
> problems in development(32). During infancy and preschool years,
> marijuana-exposed children have been observed to have more behavioral
> problems than unexposed children and poorer performance on tasks of visual
> perception, language comprehension, sustained attention, and memory(33,
> 34).
> In school, these children are more likely to exhibit deficits in
> decision-making skills, memory, and the ability to remain attentive(35,
> 36,
> 37).
>
>
> Addictive Potential
>
> Long-term marijuana use can lead to addiction for some people; that is,
> they
> use the drug compulsively even though it interferes with family, school,
> work, and recreational activities. Drug craving and withdrawal symptoms
> can
> make it hard for long-term marijuana smokers to stop using the drug.
> People
> trying to quit report irritability, sleeplessness, and anxiety(38). They
> also display increased aggression on psychological tests, peaking
> approximately one week after the last use of the drug(39).
>
>
> Genetic Vulnerability
>
> Scientists have found that whether an individual has positive or negative
> sensations after smoking marijuana can be influenced by heredity. A 1997
> study demonstrated that identical male twins were more likely than
> non-identical male twins to report similar responses to marijuana use,
> indicating a genetic basis for their response to the drug(40). (Identical
> twins share all of their genes.)
>
> It also was discovered that the twins' shared or family environment before
> age 18 had no detectable influence on their response to marijuana. Certain
> environmental factors, however, such as the availability of marijuana,
> expectations about how the drug would affect them, the influence of
> friends
> and social contacts, and other factors that differentiate experiences of
> identical twins were found to have an important effect.
>
>
>
>




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