Twist in the FDA’s Alzheimer’s decision: no limits on which patients can get the drug … Biden administration advises changes to policies linked to N95 shortagesFrailty tied to increased mortality in COVID: A living review and meta-analysis … In type 1 diabetes, blood sugar extremes are tied to sixfold risk of dementia … Exercise likely to be best treatment for depression in coronary heart disease … “Immunological memory” protects against COVID re-infection for at least 11 months, analysis shows