"Money doesn't buy happiness" is a common adage, and it may be more true than you think. People who live in wealthier countries seem to be more depression-prone than those in poorer countries.

The technology already exists to send electrocardiogram (ECG) images via smart phone from a rural community to a hospital, potentially thousands of miles away. But errors still happen.

As parents and grandparents age, inevitably questions arise about their vision and their ability to remain safe on the road. Many vision care providers take the lead, helping to avoid an awkward conversation with a family member.

After tumors or accidents, the skull may be so damaged that a helmet is required to protect the brain because few other options are available. Now a new surgical technique provides complex skull reconstruction.

One of the hardest parts about exercising is getting motivated to do it in the first place. Believing in yourself may be one key to reaching your exercise goals and lowering arthritis pain.

Patients that develop a dangerous heart valve infection may be difficult to diagnose. It requires lengthy treatment and can even be deadly if not detected early.

Why is the number of Americans with type 2 diabetes growing so quickly? Part of the answer may have to do with the amount we exercise.

The sun can be a good thing and a bad thing. Too much can cause skin cancer and too little will leave us needing vitamin D. We need just the right amount of sun and kids aren’t getting it.

Doctors may soon be able to predict who is at risk for Alzheimer's disease by pinpointing chemical changes in the brain many years before symptoms develop.