Scientists have long known that Parkinson's disease is caused by cell death. Pinpointing the exact cause, however, hasn't been an easy task. A genetic discovery may help with the puzzle.

Blood tests are one method that has been relied on to diagnosis tuberculosis (TB). Now the World Health Organization has warned that such blood tests can frequently be inaccurate and lead to unsuitable treatments.

Scientists have deciphered how a gene works. They were aided in part by the gene's link to both Alzheimer's disease and type 2 diabetes, which could prompt new treatment options.

Moderate lifestyle changes may seem small, but they can provide large returns in better health. Exercising and smoking cessation are among modifiable changes capable of reducing risk of Alzheimer's disease.

Around 15 percent of couples in the United States have difficulty conceiving. Since half of infertility issues can be attributed to males, researchers are focused on finding a potential missing link.

A number of teen athletes have suffered fatal heart problems during sports practice, leaving doctors scrambling to find a way to prevent such deaths. ECG screenings had been suggested, but they may not be accurate.

If you've ever fueled up at a truck stop, there's no doubt you've inhaled exhaust from diesel-fueled vehicles. Clearly, this is something to avoid, if at all possible.

The miseries of chemotherapy - such as nausea, hair loss and weakness - may soon be a thing of the past. A new technology being studied may minimize these toxic side effects.

There was a time when people would have scoffed at the idea of developing an artificial heart capable of functioning for years. Now there is a wireless heart pump upgrade.