Learned helplessness got it backward: in rats, passivity is the brain's default under uncontrollable stress. What's learned is control, detected by the prefrontal cortex, which quiets a brainstem alarm. #learnedhelplessness #neuroscience

Does NSDR work? A 2026 trial: 10 min of NSDR helped people feel less tired and stressed. Another: a 25-min nap beat it, and NSDR showed no significant effects. The "65% dopamine" claim comes from one small 2002 study. #NSDR #sleep

FOP turns muscle into bone, caused by a one-letter change in ACVR1 that lets activin A trigger bone growth. Blocking activin A cut new bone lesions from 19 to 1–2 in a phase 3 trial, now FDA-approved (2026). #FOP #raredisease