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party poopers
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

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To me this looks like early morning tiredness and afternoon tiredness, while 4th period is in the sweet spot, like maybe immediately after lunch
I would say immediately before lunch. After makes me sleepy
Depends on what you eat, not all foods make you sleepy after lunch
All the good ones do.