On Aging

Scientists are taking a second look at the idea that hormone replacement therapy could reduce a woman's risk of dementia. New research suggests the key may be in giving it at the right time.

Only about half the people with Alzheimer's symptoms get a diagnosis, partly out of fear of an incurable decline, doctors suspect. But Jose Bolardo says facing the future allows him to plan for it.

A new public health campaign says controlling high blood pressure is among the best ways to keep your brain sharp. The neurologist in charge aims to lead by example.

Two drugs appear to support immune function of elderly people and may be important for future research into anti-aging treatments.

As the number of people with Alzheimer's climbs, so does the number of loved ones caring for them. The health of 16 million unpaid U.S. caregivers has become a focus for Alzheimer's advocacy groups.

Two herpes viruses that cause skin rashes in toddlers may accelerate Alzheimer's disease when they infect brain cells. The finding suggests antiviral drugs might help protect the brain.

The jury's been out on whether low blood levels of vitamin D increase the risk of colorectal cancer. Researchers say a new review involving more than 12,000 people strongly suggests the answer is yes.

Noting a sharp rise in colorectal cancer among younger people, the American Cancer Society now suggests that healthy adults get their first screening five years earlier — at age 45.