It causes the heart to beat faster and blood vessels to draw together (to constrict). ... Blood pressure increases, which can cause heart attacks or strokes. ... Some of the consequences of taking crack and cocaine include: Problems in the blood vessels, including heart attack, heart failure and irregular heart beat. ... They cause your heartbeat to slow down; blood vessels start relaxing and lowering blood pressure. ... The Impact on the Body Heavy marijuana smokers are prey to chest colds, bronchitis, emphysema, and asthma. ...

• Word Count: 2633
• Approx Pages: 11
• Grade Level: High School

Amyl Nitrate was discovered in 1857 and was used as a medicine for dilating blood cells. ... IMMEDIATE EFFECTS ON YOUR BODY *Fell very good and confident *Heart beats faster *Feel alert and energetic *Breathe faster *exited or agitated *Less hunger *talk a lot *Blood pressure rises *feel aggressive *Pupils expand *anxious or panicky *Faster movement *take more risks than usual *Difficult to sleep LARGE AMOUNTS *Headaches *Become pale *Feel dizzy *Fell very powerful *Shake *Become aggressive *Irregular breathing *Hear voices *Very fa...

• Word Count: 1969
• Approx Pages: 8
• Grade Level: High School

Definition The use of illicit or illegal drugs or the abuse of prescription or over-the-counter drugs for purposes other than those for which they are indicated or in a manner or in quantities other than directed. History of Drug Abuse Humans have used drugs of one sort or another for thousands of years. Wine was used at least from the time of the early Egyptians; narcotics from 4000 B.C.; and medicinal use of marijuana has been dated to 2737 B.C. in China. But not until the 19th cent. A.D. were the active substances in drugs extracted. ...

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

Some other side effects are general change in consciousness, increased appetite, slowness, tiredness, blood shot eyes, mouth dryness, interrupts linear memory, difficulty following a train of thought and short term memory loss. ...

• Word Count: 10574
• Approx Pages: 42