So you think you're allergic to something you inhaled, touched or ate. But without any obvious symptoms, it's hard to tell exactly what you're allergic to. And experts say allergy testing may not always be useful.

Getting to the bottom of a headache can be a headache itself. Many turn to CT or MRI scans for answers. But a recent campaign says that may not be necessary.

Child obesity happens for many different reasons. These include TV time, diet, physical activity, genetics and other issues. Changing some of these may help reduce risk of obesity.

Awareness about postpartum depression has grown over the past several decades. Women are realizing they are not alone and can seek help. But fewer are aware of postpartum anxiety.

What happens to kids who have ADHD when they grow up? Does the disorder go away? Or do they continue to struggle as adults? Or is it a bit of both?

People with asthma know that they need to be on alert for asthma attacks to make sure they get the treatment they need. A recent study showed that they may also need to look out for signs of blood clots.

Diclofenac is frequently used for the treatment of pain and inflammation caused by arthritis. But the medication may also lead to heart problems.

When it comes to heart therapies and tests, some patients and doctors have a “more is better attitude.” A group of medical societies have called more than 130 treatments and exams into question.

Detection of osteoporosis is important for treating and preventing bone fractures. But when it comes to bone density testing for osteoporosis, more isn’t always better.

Acupuncture has been used to treat many conditions, from chronic pain to joint pain to headaches. A stronger technique may produce stronger results.