> it induces hyperactivity and harms concentration in healthy people This is wrong. They don't like to talk about it, but air forces around the world have been

> it induces hyperactivity and harms concentration in healthy people This is wrong. They don't like to talk about it, but air forces around the world have been giving amphetamines to pilots since WWII. They're used to enable pilots to maintain focus for long missions. The US Air Force conducted studies on amphetamines in the 50s and concluded that they do indeed improve pilots' performance. Edit: See https://en.wikipedia.org/wiki/Amphetamine#Enhancing_performance https://en.wikipedia.org/wiki/Amphetamine#Enhancing_performa...