Depression seemed linked to an increased awareness of social odors (for example, the “good” and “bad” smells of other individuals.

One current theory is that this type of Alzheimer’s may be familial, but a similar form is found in those with Down Syndrome. Estimates suggest that 50 percent or more of people with Down syndrome will develop dementia due to Alzheimer’s disease as they age.

The group of researchers spread out around the computer screen. They seemed to hope that they had finally found the answer to Alzheimer's, a...

The psychological hazards of widowhood have received more attention in recent years. While the loss of a spouse can be traumatic for anybody, studies show that...