1. Cannabis Sativa
The blood vessels in the user's eyes will probably enlarge, giving the person a "blood shot" appearance. ... A heavy dose of marijuana can decrease the amount of blood pumped into the brain. ... The blood flow to the back of the brain is greater than the front, after smoking. ... The damage to the immune system can cause the user to get pneumonia or a chest cold etc. more easily. ... You could develop lung cancer or a dangerously low blood pressure. ...
- Word Count: 1469
- Approx Pages: 6
- Grade Level: High School