ngrpls

Lower risk for dementia from having an active lifestyle that involves occasionally needing stitches, and being the type to go get them and also get a tetanus shot.

The idea that vaccines magically cure dementia for no particular reason is so absurb they should be embarrassed to publish this drivel. Basically everything indicative of intelligence, exercise, and health consciousness predicts lower dementia risk; it shouldn't be surprising that something associated with all of these seems correlated.

Sitting most of the day (i.e. with almost all of your muscles relaxed) is associated with dozens of diseases and early death.

Any chair that lets you relax your legs or disengages your hips is very bad for your health. Any chair that also relaxes your spine is even worse.

The author basically nails it: either pick a chair so basic you're forced to engage your hips and spine to spread the load and maintain posture, or go with an active option like a medicine ball or stand-up desk.