The “wonderful” development of plastics in the 1940s brought about a change in our lives and may have created an incessant, hidden danger to our health.

Alzheimer’s dementia is not a normal part of the aging process. Still, the most significant risk factor is increasing age, with most of those with Alzheimer’s disease 65 years and older.

Here’s What the Evidence and the Experts Have to Say. A physician and a dietitian explain how the ketogenic diet works and who can benefit from it.

LET’S CUT TO THE CHASE — a new study demonstrates an association between light-intensity physical activity in older adults and a lower risk of dementia. While the...