By Yokota Fritz
People in their late 40s and early 50s who excercise for half an hour at least twice a week could reduce their risk of dementia by about 50%, according to a study
reported in Lancet Neurology.
Those who are genetically prone to Alzheimer's disease could see a reduction of about 60%, it adds.
The amount of exercise that appeared to be necessary to be protective was physical activity which lasted 20-30 minutes at least twice a week and which was enough to cause breathlessness and sweating.
People are generally recommended to take moderate aerobic exercise for 20-30 minutes three to five times a week for a healthy heart and lungs.
Lancet article here
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