Last Updated Apr 20, Sixty-one percent of Americans think marijuana use should be legal, a five-point increase from last year and the highest percentage ever recorded in this poll. Eighty-eight percent favor medical marijuana use.
When people begin using marijuana as teenagers, the drug may impair thinking, memory, and learning functions and affect how the brain builds connections between the areas necessary for these functions. Researchers are still studying how long marijuana's effects last and whether some changes may be permanent.
For example, a study from New Zealand conducted in part by researchers at Duke University showed that people who started smoking marijuana heavily in their teens and had an ongoing marijuana use disorder lost an average of 8 IQ points between ages 13 and The lost mental abilities didn't fully return in those who quit marijuana as adults.
Those who started smoking marijuana as adults didn't show notable IQ declines. This suggests that the IQ decline in marijuana users may be caused by something other than marijuana, such as shared familial factors e. Higher THC levels may explain the rise in emergency room visits involving marijuana use.
The popularity of edibles also increases the chance of harmful reactions.
Edibles take longer to digest and produce a high. Therefore, people may consume more to feel the effects faster, leading to dangerous results. Higher THC levels may also mean a greater risk for addiction if people are regularly exposing themselves to high doses.
What are the other health effects of marijuana? Marijuana use may have a wide range of effects, both physical and mental. Physical Effects Breathing problems.
Marijuana smoke irritates the lungs, and people who smoke marijuana frequently can have the same breathing problems as those who smoke tobacco. These problems include daily cough and phlegm, more frequent lung illness, and a higher risk of lung infections. Researchers so far haven't found a higher risk for lung cancer in people who smoke marijuana.
Marijuana raises heart rate for up to 3 hours after smoking. This effect may increase the chance of heart attack. Older people and those with heart problems may be at higher risk. Problems with child development during and after pregnancy. However, this study also found that women were about twice as likely to screen positive for marijuana use via a drug test than they state in self-reported measures.
Additionally, in one study of dispensaries, nonmedical personnel at marijuana dispensaries were recommending marijuana to pregnant women for nausea, but medical experts warn against it. This concerns medical experts because marijuana use during pregnancy is linked to lower birth weight 10 and increased risk of both brain and behavioral problems in babies.
If a pregnant woman uses marijuana, the drug may affect certain developing parts of the fetus's brain. Children exposed to marijuana in the womb have an increased risk of problems with attention, 11 memory, and problem-solving compared to unexposed children. More research is needed.
Read our Marijuana Research Report for more information about marijuana and pregnancy. Intense Nausea and Vomiting.Jun 20, · Recreational marijuana use will soon be legal in Canada after the Senate passed a "historic" bill on Tuesday with a vote of Although marijuana remains prohibited by federal law, an increasing number of states have legalized the drug for medical and recreational use in the past few years.
In fact, some politicians are. rows · Possession of up to 20 g of marijuana or 5 g of genetically modified marijuana for . Aug 01, · Much of the country — with The New York Times regrettably in the vanguard — is advocating the reckless addition of a third drug, marijuana, to two drugs currently legal for adults: alcohol and.
Recreational marijuana legalization goes into effect in Vermont. Vermont is now the ninth state in the country where recreational use of marijuana is legal. Marijuana plants are grown for medicinal purposes in a clandestine greenhouse in Mexico City in Mexico legalized medical marijuana in , but recreational pot remains largely illegal.