Summer fun in the sun has long been tempered by the threat of skin cancer – it’s the most common cancer in the United States, after all, killing thousands of Americans each year. ABOVE: The Worst States for Your Skin But sun exposure might help reduce blood pressure, cut the risk of heart attack and stroke and even prolong life, according to preliminary research from the University of Edinburgh. This means that the benefits of sunshine could trump the potential...

A vaccine for Lyme disease could be on the way, following a successful phase 1/2 clinical trial, researchers from the Stony Brook University School of Medicine and Brookhaven National Laboratory reported in the online journal The Lancet Infectious Diseases. MORE FROM WEATHER.COM: 6 Deadly Summer Diseases In the trial, the vaccine was well tolerated by 300 people, who received three primary immunizations and one booster shot. Participants demonstrated only mild adverse reactions to the vaccine. No vaccine-related serious health events...

The sky turned orange in Scottsdale, Ariz. during the Haboob. iWitness/Mikelp82 FRESNO, Calif. -- California and federal public health officials say valley fever, a potentially lethal but often misdiagnosed disease infecting more and more people around the nation, has been on the rise as warming climates and drought have kicked up the dust that spreads it. The fever has hit California's agricultural heartland particularly hard in recent years, with incidence dramatically increasing in 2010 and 2011. The disease - which...