Hacker News Reader

With both this article and the propranolol one, it sure seems that resting (both short breaks and full sleeps) really help a lot.

Wonder why every CEO's boasting 4 hour nightly sleeping schedules?

Lies and testosterone? It also allows you to do more work that you already know how to do, but makes any new work frustrating and difficult.

Isn't there people that actually needs less sleep?

And needing less sleep could be an explanation to why they reach these levels?