US dementia cases set to double by 2060; Study claims red meat a culprit in cognitive decline—but a close read reveals it’s a lot of baloney; Aerobic exercise is best hedge against Alzheimer’s; Prevagen ordered to drop memory claims; When a blood pressure cuff is too tight, can it throw off readings? An 80-year-old who takes DHEA wants to add pregnenolone; Oregon hospital patient awarded $900,000 after face catches fire during surgery; LA residents may suffer health consequences of pollutants long after wildfires quenched.