Water and sports drinks may have their differences, but the carb-filled drinks may not have as much of an effect on mood as previously thought.

Bariatric surgery is an increasingly common treatment for obesity. After the surgery, however, healthy habits contribute to weight loss. They also contribute to positive mental health.

Rates of obesity, as well as risky health factors associated with obesity, increase with age. But is weight loss safe for people over 65? Under medical supervision, the answer is yes.

For years, vitamin C has been said to help people stay healthy and recover faster from a cold. Science says this may be true in some ways.

Irritable bowel syndrome (IBS) can cause pain, constipation and diarrhea. Those symptoms can also be caused by allergies to some foods. So, are some IBS symptoms caused by a food allergy?

Heart disease is one of the leading killers in the United States. Too much salt in your diet is a risk factor for heart disease and other heart problems. So could reducing salt save lives?

Red, irritated and inflamed gums not only hurt, but can spread infections that eventually lead to tooth loss. Dentists may have found a link between obesity and serious gum infections.

When it comes to eggs and heart health, the message has been scrambled. While some researchers believe eggs can be bad for the heart, others find no link between heart disease and eating eggs.

There's more to a meal than eating. The time spent with family at the dinner table can be good both for the heart and to help keep off the extra pounds.

Being overweight is a risk factor for type 2 diabetes, which has been increasing in children and teens. But those already with diabetes still aren't active enough.