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A drug is any psychoactive chemical substance which changes the behavior, feeling and physiology of a user. Drugs can influence how a person thinks, feels and behaves. Drug can exist in many forms such as in powder, liquid, pill or herbal form. Drugs can be consumed, inhaled, smoked or injected into the body. A drug may be useful or harmful to the body depending on how it is used. Types of Drugs There are four main groups of drugs, namely stimulants, depressants, hallucinogens and opiates. Drugs are normally categorized accordingly to their effects. Stimulants are drugs that speed up nerve impulses. Caffeine is a stimulant found in both coffee and tea. It is not harmful if taken in small amounts. Another type of stimulant called amphetamines, however, are harmful. Ecstasy is an example of this amphetamine. Ecstasy makes the user feel energetic, gives a sense of confidence and increases his heartbeat as well as body temperature.

Enduring back pains? You might need a regular massage spa visit. Massage is a holistic approach to manage pain and stress.

Imagine that you've been cast away on a desert island . You live completely alone. You have enough to eat and drink. You have shelter. It may even be quite pleasant. But there's no-one else around. After a while you start to feel that some thing s you're doing may be rather strange. One of the things you're lacking is feedback. No-one is giving you any information about how you're getting on. No-one responding to what you do. Without feedback it is difficult to regulate what you do.