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Over time, the marijuana gateway hypothesis has been studied more and more. In one published study, the use of marijuana was shown not a reliable gateway cause of illicit drug use. [67] However, social factors and environment influence drug use and abuse, making the gateway effects of cannabis different for those in differing social circumstances.
Acute effects while under the influence can sometimes include euphoria or anxiety. [ 4 ] [ 5 ] Although some assert that cannabidiol (CBD), another cannabinoid found in cannabis in varying amounts, may alleviate the adverse effects of THC that some users experience, [ 6 ] little is known about CBD's effects on humans.
The effects last for two to six hours, depending on the amount used. At high doses, mental effects can include anxiety, delusions (including ideas of reference), hallucinations, panic, paranoia, and psychosis. There is a strong relation between cannabis use and the risk of psychosis, though the direction of causality is debated.
Weed affects your ability to make decisions, control emotions, remember important data, plan, organize and solve problems, a new study found, and that impact may last well past your initial high.
A new study has shown a spike in marijuana use among seniors in the last decade — specifically elderly women and those who are married. Marijuana use spikes among women over 65, study say [Video ...
In Phase III trials, the most common adverse effects were dizziness, drowsiness and disorientation; 12% of subjects stopped taking the drug because of the side effects. [ 57 ] Dronabinol (brand names Marinol and Syndros) is a delta-9-THC containing drug for treating HIV/AIDS -induced anorexia and chemotherapy-induced nausea and vomiting .
D’Souza added that cannabis use can have serious impacts on the developing brain because of its effects on the endocannabinoid system, a complex signaling system in the brain that marijuana targets.
As of 2021 there is a lack of research into long-term cognitive effects of medical use of cannabis, but one 12-month observational study reported that "MC patients demonstrated significant improvements on measures of executive function and clinical state over the course of 12 months".