A RECENT NEW YORK TIMES newspaper column asks, “Can Certain Foods Really Stave Off Dementia?” Today we explore whether you can use diet to reduce your risk of suffering from this memory-robbing condition.

Mirrors mostly don’t lie unless you buy a bad one, but even then they reflect an image that makes some people cringe and become depressed.

Physical activity alone may not be sufficient for weight control. Weight gain or loss is primarily determined by the balance between the number of calories consumed and burned.

I AM MORE INTERESTED IN HEALTHSPAN than lifespan. I wouldn’t like to live too long with severe dementia. Today’s essay explores eight healthy habits that might add decades to your life.