The physical activity paradox: not all forms of exercise lower your dementia risk – this type raises it

New Africa/Shutterstock.com Not all physical activity is equal when it comes to protecting the brain from dementia. Where and why we move may matter more than most people realise. A large new review of studies published in The Lancet Public Health found that leisure-time physical activity – such as sport, dancing or going to the gym – was linked to a 24% lower risk of dementia. Housework was linked to a 15% lower risk, although this finding came from just one study. Occupational physical…