Have you ever visited the patel chest in North campus, Delhi University. If not then go there . you will see a row of students sitting on a footpath who will be smoking. There is no doubt in that fact that they know the effects of smoking on brain. But still they are doing this. Apart from this we are seeing a lot of students who are taking cocaine, marijuana, weed, alcohol and many more. Drugs are chemicals. When someone puts these chemicals into their body, either by smoking, injecting, inhaling, or eating them, they tap into the brain’s communication system and tamper the way nerve cells normally send, receive, and process information. We know there are at least two ways through which drugs can effect the brain : 1. Imitating the brain’s natural chemical messengers 2. By changing the composition of the brain Some drugs, like heroin have chemical structures that effect the neurotransmitter that naturally occurs in our bodies. In fact, these drugs can “fool” our re