- The use of medical marijuana is currently legal in many U.S. states and the District of Columbia. In those jurisdictions, people for whom medical marijuana has been specifically recommended by a physician must carry a (medical) marijuana card that indicates their use of the substance for a clear medical purpose.
- Attempts to completely legalize the use of marijuana, whether for medicinal purposes or not, remain strongly contested in most jurisdictions.
- There are a variety of buy marijuana Ottawa types, also called strains.
- Numerous research studies show that marijuana is indeed an addictive substance. The symptoms of addiction to marijuana are similar to those of any other addictive substance.
THC moves from your lungs into your bloodstream and throughout your body. Within minutes, your heart rate may increase by 20 to 50 beats per minute. That rapid heartbeat can continue for up to three hours. If you have heart disease, this could raise your risk of heart attack.
One of the telltale signs of recent marijuana use is bloodshot eyes. The eyes look red because marijuana causes blood vessels in the eyes to expand.
THC can also lower pressure in the eyes, which can ease symptoms of glaucoma for a few hours. More research is needed to understand the active ingredients in marijuana and whether it’s a good treatment for glaucoma.
In the long term, marijuana has a possible positive effect on your circulatory system. ResearchTrusted Source isn’t conclusive yet, but marijuana may help stop the growth of blood vessels that feed cancerous tumors. Opportunities exist in both cancer treatment and prevention, but more research is needed.