1: Heroin can be injected, inhaled by snorting or sniffing, or smoked. All three routes of administration deliver the drug to the brain very rapidly, which contributes to its health risks and to its high risk for addiction, which is a chronic relapsing disease caused by changes in the brain and characterized by uncontrollable drug-seeking no matter the consequences.
The 25 heroin facts in this slideshow are provided by the National Institute on Drug Abuse.
Tap here to read the facts.
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The participation of 23 athletes in the Rio Olympics could be under threat, after doping samples gathered from London 2012 tested positive for banned substances.
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A Los Angeles judge granted Amber Heard a temporary restraining order Friday against husband Johnny Depp, whom she claims has been abusive.
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