I've discovered while working four 10-hour days that I cannot really do anything during that four day stretch except work, sleep and eat. I started out knowing that and then tried to add a few after-work activities and it just messes up my sleep pattern. I must hit the hay by 8:00 p.m. as I am up at 3:30 a.m., although I don't have to leave my house until 6:10 a.m. I love mornings and that's when I get stuff done. Now .... off to the treadmill.
TAKE AWAY: Find a sweet spot in my schedule and stick with it.
My life goes to smooth when I get enough sleep, eat right and exercise.