For kids with arthritis, painful joints can limit activity. Trying to sort out the relationship between pain and activity in these kids could mean better therapies and quality of life.

"A body in motion remains in motion" is especially true for people over 60. A new study has found a link between time spent sitting each day and disability, even for people who exercise.

Some infections that a woman may develop during pregnancy can be passed along to her baby, but this doesn't necessarily mean long-term problems for her child.

Many athletes, parents and coaches may expect that wearing a helmet can help protect against concussions. They might be surprised.

For some women with breast cancer, a procedure to remove a breast might be a part of treatment. New research explored how many of these women undergo reconstructive surgeries after these procedures.

If left untreated, one kind of irregular heartbeat called atrial fibrillation can result in blood clots, stroke or serious heart problems. Beyond taking a pill, there are other ways of trying to correct the problem.

Surgery can often be a definitive treatment to solve a health issue, but sometimes the operation can lead to a brand new problem, like an infection. A recent study explored rates of infection after surgery in the US.

Falls resulting in a hip fracture often occur at home. One new study suggests that the key to a better recovery after such a fall may be found at home as well.

Aortic stenosis, a narrowing of the main heart artery, is a common problem among older adults. While valve replacement may prolong life, psychological and general health benefits may be modest.