Day 520 of 100+ pushups per day; day 419 of 120+ pushups per day, sets breakdown: 4x36 normal/narrow, 12 pike; Total: 156

Memory hack... exercise, MCT oil, caffeine, nicotine :) Also: uninterrupted focus. Writing down the important stuff. Imagining teaching whatever you are studying/learning to someone else. Fasting can also help in certain circumstances.

I'm about half way through this Huberman Lab Essentials episode (might do a summary of it when I finish it):

Another relevant and interesting episode is this one: