published two days ago in Neurology - physical activity! The authors followed for 4 years 716 participants average 82yo of whom three quarters were female, all w/o baseline dementia and noted that total daily physical activity (as measured by actigraphy ) was associated w/50% lower risk of developing Alzheimer's disease, even after taking into account the usual suspects, eg social & cognitive activities, motor function, depression, chronic health issues & genetics (APOE alleles). More specifically, this dramatic decrease was noted by comparing those in the highest decile of total daily physical to those in the lowest decile, again as measured objectively by actigraphy worn 24 hours/day for upwards of 10 days.I gave them all the same answer as
It's worth noting that while we continue to advise & advocate exercising moderately at least 30 minutes most days of the week , this relatively minor amount of physical activity only accounts for 1.5-3% of our time each week. Granted we're hopefully sleeping 33% of the week (8hrs/day) but as I noted last month, this still leaves 64% of the day unaccounted . The point is this: get off your a-- and move around. It'll lower your risk of developing dementia and it'll lower your all-cause mortality . Think about it - you get two benefits for the price of one. Don't wait! Starting getting active throughout your day today!