Six-month studies showed twice-weekly workouts may help people with mild cognitive impairment. Photograph: Getty

By a certain stage in life, most people show some signs of the odd memory blip or become a little forgetful. The inevitable question often follows: (...)

In the US Alzheimer’s study, published by the American Academy of Neurology, blood samples were taken from 20 people who later developed Alzheimer’s. Photograph: PA

Rising levels of a naturally occurring protein in the brain could give up to a decade’s warning of Alzheimer’s disease, before memory problems have be(...)