Biological Approach

       In every idea, every mood, and every urge is a biological happening. We are enlighten how does our mind connected to brain. So that we can think, feel, and act with our body.We've also learned the significance of the nervous system to mind, brain, and body. Brain is the center of the thought and nervous system control to influence the body to our behavior and activities. Drug is a substance used as medicine to cure those person are not in good health, those person who are suffering serious disease or to boost the immune system according to the needs of our internal and external body system. Unfortunately,  some drugs can cause of addiction or a marked change in mental status if we didn't take it in a proper way of medication. The most commonly used drug is alcohol. Alcohol has the ability to transform a collection ill-at-ease strangers into laughing or boisterous group of friends. Alcohol is the depressant that suppresses nerve impulse. It shows down the ability to think critically and can also influence the behavior. Drinkers may have great difficulty remembering the names of their companion even what they doing or memory loss of the event. Stimulants are drugs that produce physiological and mental arousal. They can decrease fatigue, increase talkativeness and physical activity, enhance endurance, diminish appetite and produce a state of alertness. Examples of these are caffeine, nicotine, amphetamine etc. To understand the importance of drugs mentally, physically, psychologically and emotionally, we don't need to get abuse or too much applying because it will affect to our behavior and it is proven that it can cause brain brain damages result to coma or death.