This Is Your Body On Weed

It's not as simple as you think.

Weed, pot, grass, ganja and even Mary Jane. Call it what you like — we all know what it is.

Marijuana is the most widely used illegal drug worldwide. It is produced using the dried leaves, flowers, stems and seeds of Cannabis sativa, a hemp plant. This particular type of Cannabis is rich with THC (tetrahydrocannabinol), the chemical responsible for getting you high.

But what exactly happens when THC hits the brain? What causes that tingling sensation in your body and why do you feel happier after lighting a spliff?

Watch this video where CNN's chief medical correspondent Dr. Sanjay Gupta explains the various effects and applications of weed.

According to the Global Drug Survey, the most common way to consume cannabis is by smoking it. 85 percent of the marijuana users surveyed smoke joints. Others use pipes and water bongs.

Mixing cannabis with tobacco can increase the risk of developing lung diseases and breathing problems.

Eating cannabis can intensify and prolong its sensations.

Frequent use of cannabis reportedly can cause attention problems and memory impairment. It can also cause anxiety, fear and even schizophrenia in the older age.

Marijuana can be addictive. Some long-term users report they had problems with sleep, appetite and mood swings while trying to quit.

Related: Why A 91-Year-Old Italian Grandma Puts Marijuana In Her Chicken Cacciatore.

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