There were even early doping scandals – in 1876, Weston was found to be chewing coca leaves while he walked. The use of this natural product as a stimulant is a

There were even early doping scandals – in 1876, Weston was found to be chewing coca leaves while he walked. The use of this natural product as a stimulant is ancient, pre-dating the Incan civilisation in South America, where it was used by local people to relieve fatigue and hunger. Though illegal in many countries to this day due to its addictive qualities, at the time chewing coca wasn't strictly breaking the law – just unsportsmanlike. Weston's excuse has remained a classic: he was prescribed it by his doctor.