... as long as 4 hours. Smoking marijuana deposits several times more THC into the blood than does eating or drinking the drug. 5 Within a few minutes after inhaling marijuana smoke, an individual's heart begins beating more rapidly, the bronchial passages relax and become enlarged, and blood vessels in the eyes expand, making the eyes look red. As THC enters the brain, it causes ... to fight off infectious diseases and cancer.4 One study has indicated that a person's risk of heart attack during the first hour after smoking marijuana is four times his or her usual risk. The researchers sugg...

• Word Count: 2773
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate

... harder, than quitting heroin use. Dependence to nicotine use occurs rapidly (Goldberg 225). Withdrawal symptoms are most severe in the first 24-48 hours after last use and include lower heart rate and blood pressure, difficulty maintaining attention, aggressiveness, insomnia, tremors, hunger, headaches, drowsiness, fatigue, and anxiety. Despite the withdrawal symptoms, lung cancer can occur in chronic smokers, and can cause ... of migraine headaches, and help prevent the spread of cancer. Pot also leads to difficulty in concentration, attention to detail, and learning new complex inform...

• Word Count: 3573
• Approx Pages: 14
• Has Bibliography
• Grade Level: High School

... for cocaine, including coke, C, toot, flake, and snow. cocaine Section: Effects and Addictive Nature Related: Pharmaceuticals Cocaine blocks pain sensation and stimulates the central nervous system , producing a sudden increase in heart rate, temperature, and blood pressure. In the brain, it blocks the synaptic reabsorption of certain neurotransmitters (in particular dopamine ). The resultant buildup of neurotransmitters causes pleasurable sensations to be passed ... androstenedione, which converts to testosterone in the body, is available in drugstores without a prescription. Abuse of ...

• Word Count: 5106
• Approx Pages: 20
• Grade Level: Undergraduate

... . Other effects of alcohol abuse include irritation of the intestinal tract lining and the colon; nausea, diarrhea, vomiting, sweating and loss of appetite; and increase in blood pressure, risk of heart attack and stroke. These symptoms develop over time. Alcoholism, however, can begin to develop after the first drink. There are many reasons why people start drinking, such as to increase self ... ...

• Word Count: 3235
• Approx Pages: 13
• Has Bibliography
• Grade Level: High School