Every year about 100,000 implantable cardioverter-defibrillators ( ICDs ) are received by patients with life-threatening heart arrhythmias. About a quarter of those are replacements because of a depleted battery, many of which may be unnecessary.

Your child's Body Mass Index (BMI) can say a lot about their health. A high BMI at the age of seven is linked to an increased risk of asthma and allergies.

Which would you rather do, give up some saliva or have blood taken? Good news for those of us who hate being pricked with needles: A saliva test can replace a blood test for HIV.

Not only is lung cancer one of the most commonly diagnosed cancers in the United States, it's also the leading cause of death in China. A new test may help save thousands of lives.

For children with autism, the disorder often isn't the only thing they struggle with. Autism frequently goes hand in hand with other developmental or psychiatric conditions such as attention disorder, anxiety, speech delays or learning disabilities.

For children who suffer from manic, or bipolar, disorder there are many drug therapies available. But the side effects can be a problem, and until now no one has really studied which medication is the best for children.

Many new mothers wonder why their toddler sons don’t speak as well – or as quickly – as other children. A new Australian has an answer: Blame it on testosterone.

Cell phones are becoming ever more popular worldwide - even in developing countries and low-income households. New research suggests that this widespread technology could be used to reduce depression in adolescents.

A fun fact about drug development is that despite the best effort of everyone involved, it's hard to predict what the drug is going to do. Rogaine and Viagra were both originally developed as blood pressure medications. And then there's thalidomide.

Kidney disease puts people at risk for a number of related health complications. As their kidneys start to fail, some patients may even bleed from their stomach or intestines, a problem that may need more attention.