Question: how many hours a day is 80 hours a week?
Answer: 14 hours / day. So if you work 80 hrs / week, you have 12 1/2 hours left in the day to do whatever. And if you work 100 hrs / week, you have 10 hours left in the day to do whatever. When you work those many hours, you eat less, sleep less, and do less “other” things.