ALzheimer's disease does not have to cause memory loss or confusion if patients stay fit and strong in later life, a new study suggests.
The researchers followed 456 older people who signed up for a memory and aging project until their death, and then watched their brains to find out who had clinical dementia.
Surprisingly, many of those who had clear signs of Alzheimer's disease in their brains had shown no symptoms before their deaths.
Those who appeared to be protected from the disease had consistently scored lower on tests that measured fatigue, joint and heart problems, osteoporosis, mobility, and the ability to prepare meals.
"While more research is needed, given that fragility …