Not a Good Night--or Day for that Matter

I made it 77 minutes before I gave up.  I wasn't tired physically.  I probably could have made it the full 90 minutes.  My mind is tired and it makes me tired.

35 situps, pushups and squats

Weight: 174.2

Duration: 77/90
Interval: 13/7
Incline: 4/level
Calories: 488
Distance: 3.75

I have to pick my son up from the airport tomorrow.  Four hours round trip.  I can already predict there will be no exercises