Seems wrong, per hnlandfr's comment. How about: a) insomnia, b) coffee consumption, c) typing speed. Edit: also it's wrong in a basic way because coffee does m

Seems wrong, per hnlandfr's comment. How about: a) insomnia, b) coffee consumption, c) typing speed. Edit: also it's wrong in a basic way because coffee does make you type faster. I somehow overlooked that.