Doping Regulations Are A Matter Of Scientific Perspective

A lot of people get very upset about doping in sport. They may well have a point — but maybe a little scientific perspective is required. Randal Monroe puts the issue well in the alt text of today's XKCD cartoon:

"A human is a system for converting dust billions of years ago into dust billions of years from now via a roundabout process which involves checking email a lot."

We are a all just complex assemblies of chemicals which ingests and expels other chemicals. It's not necessarily clear why some of those chemicals are unacceptable. Discuss. [XKCD]

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