Prolonged periods of stress can have negative effects on the human body - but the extent of these effects is still being explored. New data suggests that chronic stress may be linked to Alzheimer’s disease.

Grappling with blood pressure that is slightly elevated? Eating raisins regularly may offer a significant blood pressure benefit, says the first controlled research to study the dried grapes.

Recent research has revealed much about the inner workings of Alzheimer’s disease and other forms of dementia. Now, a computer program has been developed that can predict when specific symptoms may occur.

At least 90 percent of Americans consume more than the daily recommended salt intake, a leading contributor to high blood pressure. Most aren't even checking the sodium content of their favorite foods.

Opioid receptors in the brain are the target of many legal and illegal drugs, from hospital anesthetics to heroin. Until recently the details of these important receptors has been somewhat of a mystery.

Is something in the air affecting kids' behavior these days? Maybe –chemicals from air pollution breathed in by expectant moms may play a part in their children's behavior issues later on.

In the past 30 years, the number of people living alone in the U.S. has doubled. One in three people live alone. There may be negative consequences - people living alone are at an increased risk for developing depression.

Our perceptions of the world around us can guide our everyday behavior and reinforce our actions. Now, new knowledge of how we perceive guns could have implications for law enforcement and violence prevention.

Much is still uncertain about what drugs are safe while pregnant, so deciding what to take or avoid may require a tradeoff. Such may be the case for a common group of antidepressants.

When young children use alcohol and illicit drugs, the effects on their mental health can be lasting and dramatic. Parenting is key to avoiding alcohol and drug use, but teachers can have an effect as well.