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The affects of cannabis, notably the euphoria or "high" feeling lasts for up to 8 hours. THC is quickly metabolized by the body and has a high affinity for CB1 receptors in the brain. A common misconception is that THC is stored in the body's fat cells and that when a drug test is taken, the drug test is detecting THC. The reality is that only THC metabolites - the byproducts of THC breakdown - are stored in the body's fat cells. Drug tests seek to detect THC metabolites. One can not get high from the metabolites. THC metabolites can be detected in the body for as long as 8 weeks depending on how often one smokes, one's body fat percentage, kidney functions, etc. Essentially if one smokes only occasionally, the metabolites will only be detectable for a very short time, as long as 2 weeks. A heavy smoker will have metabolites in their system for much longer, up to 3 months.

Cognitive Abilities (memory, executive functioning, motor control, concentration) are only affected for the duration of intoxication. If someone smokes a joint and does not use cannabis after that, they will only be under the effects for about 8 hours. Short term memory is unaffected after intoxication ends. The long term affects of cannabis on memory are not well established or studies. There may be some mild short term memory loss. Long term memory does not seem to be affected. Learning does not seem to be affected when not intoxicated. There is even evidence that Cannabis offers beneficial neuro-protective effects. THC/CBD has been shown to decrease the amount of beta-amyloid plaques in Alzheimer's patients. There is a study that has shown that THC helps promote neuronal re-growth, and decreases anxiety and depression. The U.S. government even holds a patent showing that THC, the active component in Cannabis has a positive effect on the human brain.

There is some concern that smoking cannabis may lead to cancer. At least one study has shown this may not be the case. In this study tobacco smokers, cannabis smokers, and smokers of both were studied. Tobacco smokers had a higher rate of cancer than the other two categories. Smokers of both only had a slightly higher rate of developing cancer than those who only smoked cannabis. The incidence of cancer in those who smoked cannabis was so low that it could not be causally linked.

As a note: The author of this answer is currently has a Bachelors of Science in Psychology with a heavy emphasis on drugs, brain, and behavior. The author has also advanced to candidacy in a Clinical Psychology doctoral program that also emphasizes neuropsychopharmacology (i.e. Drugs, Brain, and Behavior).

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6mo ago

The effects of marijuana can last anywhere from 1 to 3 hours after consumption, but this can vary depending on factors such as dosage, method of consumption, and individual tolerance levels. Impairment from marijuana can linger for several hours after the initial effects wear off.

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Q: How long do the effects of marijuana last?
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Continue Learning about Chemistry

Does Marijuana has the characteristics of both a stimulant and depressant?

Yes, marijuana can have both stimulant and depressant effects. It can initially produce feelings of euphoria and increased energy (stimulant effects) followed by relaxation and sedation (depressant effects). The effects can vary depending on the individual and the strain of marijuana consumed.


How long does a pot high last?

it depends on what strain of MJ you are smoking and how much. Most have an initial high of 45 minutes to an hour, assuming you smoke one bowl or joint. The after effects and the down high, coming down from it, can last a couple of hours.


What neutralizes the effects of marijuana?

There is no specific substance that can completely neutralize the effects of marijuana. The effects of marijuana will gradually wear off on their own as the drug is metabolized by the body. Time, rest, and hydration are commonly recommended to help manage the effects.


How long does an ounce of marijuana last?

The duration that an ounce of marijuana will last can vary significantly depending on factors such as your tolerance level, frequency of use, and method of consumption. On average, an ounce of marijuana might last a regular user anywhere from a few weeks to a couple of months. However, it's always important to consume it responsibly and in compliance with local laws.


How long does it take for Marijana to reach peak levels in the brain?

After smoking, marijuana reaches peak levels in the brain within 30 minutes to an hour. The effects may last for a few hours, depending on factors like the dose and individual tolerance.

Related questions

What are two possible long-term effects of marijuana use?

There is no conclusive evidence of negative long term side effects associated with the use of marijuana. The euphoric effects of marijuana only last up to three hours.


What is the longest time marijuana side effects can last?

A lifetime!


What are the long and short term effects for marijuana?

There are none of either because marijuana is not bad for your body to a degree that you can see effects of short and long term. Possible laziness?


How long can paronoia last from synthetic marijuana?

People have reported waves of negative side effects from using synthetic marijuana products that can last hours or even days. Stick with the real deal, at least you know what you're getting yourself into.


When you get a marijuana license how long does it last?

never!


What are 2 long term effects of marijuana?

Memory loss and dependence.


What are the side effects of smoking serenity now?

From personal experience it was almost as Euphoric as a High grade Marijuana high. But it made me dizzy and uneasy and i was couchlocked for about 30 minites before it wore off. In the long run, not worth it. Too expensive, Doesnt last long enough, Bad side effects. And it can kill you. Stick to Marijuana Cheers.


What are the long term affects of marjauna on a person?

Their are no long term affects to marijuana besides the fact that it is addicting. It does however have many short term effects such as red eyes and a strong desire to eat, other than that their are no long term effects when it comes to marijuana besides addiction.


How long does marijuana residue last in a pipe?

until you clean the pipe


How long does marijuana make you feel weird for?

The duration of feeling "weird" after using marijuana can vary based on factors like dosage, individual tolerance, and method of consumption. Typically, the effects of marijuana can last for 1-3 hours when smoked, and may last longer (up to 6 hours) when ingested.


Can marijuana effect your muscles in your body?

Marijuana, as a depressant, will relax muscles while a person is under the affects of it, but has little to no long term, negative effects (on muscles).


What are the side effects of continual use of marijuana?

There are many side effects of continual use of marijuana. Some of the side effects of marijuana are extreme sleepiness, nausea, asthma, and urinary tract infections.