The 4 Best Health Apps For Summer

New research from the CDC shows that Lyme disease–spreading ticks have been found in nearly half of U.S. counties, possibly because of climate change. The good news: You no longer have to worry needlessly. With the Lyme Disease Tick Map, created by the American Lyme Disease Foundation with the Yale School of Public Health and the CDC, you have a guide right in your pocket that helps you identify ticks you might encounter (black-legged ticks carry the bacteria that cause the disease).

Bonus feature: The in-app physician database makes it easy to get help if you're concerned about a bite.