I found myself surprised yesterday reading the thread about Harvard[1] when 2 people brought up how much Adderall is abused there, how easy it is to acquire, et

I found myself surprised yesterday reading the thread about Harvard[1] when 2 people brought up how much Adderall is abused there, how easy it is to acquire, etc. Can you remark on exactly how much medicine otherwise prescribed for ADHD is abused by people in the valley? Is it 1 out of every 10 employee at Google, for example? Is it mostly concentrated in startup settings? [1] http://news.ycombinator.com/item?id=5311168 http://news.ycombinator.com/item?id=5311168