honestly, in some manner or other probably yes. Doing quick math, I’m up at 4:00 AM and at work by 6:00, Dumb until 8:00. I usually eat lunch at 10:00 AM because I’m starving after my breakfast wears off. I’ll say I’m dumb starting at 9:00.
So 8:00-9:00 I’m smart-ish. I eat dinner around 4:00, let’s say my intelligence decreases at 2:30. So 11:00-2:30 is 3.5 smartish hours. I’ll give myself from 5:00 to 8:00 as an additional 3 hrs smartish.
I usually go to bed around 10:00-11:00, I’ll split the difference and call it 10:30. If I’m up from 4:00 AM to 10:00PM that’s 6hrs sleeping and 18 hrs awake. My smartish hours are 7.5 hrs in total then, or 41% of the day.