Mental tiredness isn’t one thing. There are two kinds and they need opposite fixes. Most students treat them the same, which is why studying tired feels useless. 👉THE 30 SECOND CHECK → Did I sleep under 6 hours or have I already studied 5+ hours today? → Am I rereading the same line over and over, absorbing nothing? Both yes → your brain needs real rest first. One or no → you can study, just differently. 👉IF YOUR BRAIN NEEDS REST (20 minutes, done right) → No phone. Scrolling isn’t rest, it drains the exact attention system you’re trying to recover. → Lie down, eyes closed or take a slow walk. Set a timer so your brain trusts the break will end. → Then reassess. 20 minutes of real rest returns more focus than 2 extra hours of foggy studying. 👉IF YOU MUST STUDY ANYWAY 1️⃣ START WITH FAMILIAR MATERIAL: A tired brain retrieves old information far better than it encodes new or complex material. Save new topics for tomorrow. Tonight: review, practice, strengthen. 2️⃣ SHRINK YOUR BL...