Changes

A '''drug''' is a substance which has an effect bodily function, such as mental functioning, the immune system, hormonal regulation, or the circulatory system.  Drugs which have a positive effect of the functioning of these systems are referred to as [[medicine]].  Drugs which have a deleterious effect are often illegal, though some drugs such as caffeine, alcohol, and tobacco are legal.  Illegal drugs, despite their deleterious effect on health are often taken because of addiction or a desire to fit in.

A '''drug''' is a substance which has an negative effect on health but is taken through addiction or a desire to fit in.

Illegal drugs are drugs that the government has declared to be illegal. This is often based on a perception, true or otherwise, that such substances can potentially cause damage to a person's [[brain]] and other organs. Equally there is concern about the fact that most drugs cause [[addiction]]. There is much debate over the legalization of drugs, people on both ends of the political spectrum are advocating for some drugs to be legalized while others on both ends are advocating for tougher penalties for possession of drugs. Some new age [[hippies]] believe drugs can separate one's body from one's soul, and native Americans believe drugs allow one to talk to trees; current research <ref>http://www.psych.uiuc.edu/~bhidalgo/litreview.htm</ref> in neuroscience has shown that psychedelic drugs can be used to induce religious experiences <ref>http://news.independent.co.uk/uk/health_medical/article1171389.ece</ref>.  

Illegal drugs are drugs that the government has declared to be illegal. This is often based on a perception, true or otherwise, that such substances can potentially cause damage to a person's [[brain]] and other organs. Equally there is concern about the fact that most drugs cause [[addiction]]. There is much debate over the legalization of drugs, people on both ends of the political spectrum are advocating for some drugs to be legalized while others on both ends are advocating for tougher penalties for possession of drugs. Some new age [[hippies]] believe drugs can separate one's body from one's soul, and native Americans believe drugs allow one to talk to trees; current research <ref>http://www.psych.uiuc.edu/~bhidalgo/litreview.htm</ref> in neuroscience has shown that psychedelic drugs can be used to induce religious experiences <ref>http://news.independent.co.uk/uk/health_medical/article1171389.ece</ref>.