This document discusses how various drugs can affect physical and mental health. It notes that alcohol and tobacco are legal but can negatively impact the body. Illegal recreational drugs like ecstasy, cocaine, and heroin are also addressed. While some drugs like cannabis and heroin have medical uses when prescribed, recreational use of these substances is generally harmful and can lead to issues like addiction, organ damage, infections, and mental health problems. The document also explains that passive smoking can negatively impact health by causing diseases.
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