It can also be eaten. The mind-altering ingredient in marijuana is tetrahydrocannabinol THC. The amount of THC in marijuana varies. When marijuana enters your body, THC passes through your bloodstream and to the brain.
Over the past decades, the typical percentage of tetrahydrocannabinol THC , the most active ingredient in marijuana, has increased in marijuana and marijuana products, making them more potent. There are different health risks associated with different methods of using marijuana. For example:. High amounts of THC can increase the risk for negative effects.
Cannabis use disorder CUD , also known as cannabis addiction or marijuana addiction , is defined in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders DSM-5 and ICD as the continued use of cannabis despite clinically significant impairment. Cannabis use and abuse has symptoms that affect behavior, physical, cognitive, and psychosocial aspects of a person's life. Symptoms include agitation, bloodshot eyes, challenges in problem solving, and paranoia. Cannabis use is associated with comorbid mental health problems , such as mood and anxiety disorders, and discontinuing cannabis use is difficult for some users. The use of cannabis at a young age such as the teenage years, can have serious impacts on depression and anxiety in youth and later in life.
Marijuana use by youth is far from a new phenomenon. Many adults likely recall their own experiences with marijuana as teenagers; some may still use marijuana today. Because of their experiences, adults may have a tendency to brush aside the issue, or to accept it as a rite of passage. More youth in British Columbia are now using marijuana than two decades ago.