YSK When a succesful businessperson claims to work 16 hours a day, the "work" often includes things like business lunches and golf with clients. Don't try to match them by doing actual work for 16 straight hours, the human brain can't concentrate that long and it will just be counter productive.
from /r/YouShouldKnow
当一个成功的商人声称每天工作16个小时时，"工作 "往往包括像商务午餐和与客户打高尔夫球这样的事情。不要试图通过连续16小时的实际工作来与他们相提并论，人的大脑无法集中那么长时间，这样做只会适得其反。