| Marijuana | | causes acne,sores take longer to heal,the skin loose it luster and elasticity |
| Alcohol | | Diminished or extinguished sexual pleasure |
| Cocaine | | effects the reticular formation(eyes), spinal cord, cerebellum and cerebral cortex, and many other neurotransmitters systems |
| Dopamine | | causes syndromes such as Wernicke's Encephalopathy and Korsakoff's |
| Marijuana | | causes:memory, judgment&emotions to lose balance and control |
| Cocaine | | It's a depressant that slows the central nervous system |
| Crystal meth | | Damages the frontal lobes of the brain |
| Crystal meth | | forces the heart to work harder to pump blood through the body |
| Heroin | | attach to key sites on neurons called receptors |
| Heroin | | The most widely used drug of all |
| THC | | effects individual psychologically and physically as well |
| Neurotransmitters | | causes some people to lose focus on events around them |
| Marijuana | | cocaine affects this neurotransmitter |
| Heroin | | meth makes users feel more confident,attractive,and desirable, the drug is actually working to make them unattractive |
| Marijuana | | Causes and overall reduction in the brain size and increase in the size of teh ventricles |
| Alcohol | | Daily cough and more frequent chest colds |
| Heroin | | the rush is usually accompanied by a warm flushing of the skin, dry mouth, and a heavy feeling in the extremities, which may be accompanied by nausea, vomiting, and severe itching |
| Alcohol | | send messages to each other by releasing special chemicals called neurotransmitters |
| Limbic | | Increase in testosterone levels for women and increased risk of infertility |
| Marijuana | | smoking this results in an instantaneous dose of almost pure drug to the brain, giving a huge rush following by a feeling of euphoria for anything from 2-16 hours |
| Marijuana | | Exceedingly addictive, quickly producing tolerance and dependence |
| Alcohol | | speeds the heart beat rate up to 160 beats per minute |
| Crystal meth | | converted to morphine and binds rapidly to opioid receptors |
| Marijuana | | causes salivary to dry out, which allows the mouth's acids to eat away at the tooth enamel, causing cavities |
| Crystal meth | | Depresses nerve transmission in sensory pathways of the spinal cord and brain that signal pain |
| Neurons | | Changes the way the brain works by changing the way the nerve cells communicate |
| Heroin | | Decrease in testosterone levels and lower sperm counts for men |
| Cocaine | | causes bacterial infections of the blood vessels and heart valves, abscesses and liver or kidney disease |
| Heroin | | About 8-12 hours after last use addicts' eyes tear, they yawn and feel anxious and irritable |
| Crystal meth | | chemical in marijuana that has a big impact on the brain |
| Marijuana | | tightens blood vessels |
| Alcohol | | controls feelings of pleasure |
| Alcohol | | 4-8 times more likely to have risk of heart attack in the first hour after using this drug |
