How hot do you like your peppers? Researchers at the University of California are working the heat levels of the jalapeño pepper down to a science.

How cool is your roof? If you live in the California cities of Bakersfield, Long Beach, Los Angeles, San Francisco or San Jose, you can find out with Berkeley Lab's interactive map. It's part of the lab's heat island research.

A new study suggests that maintaining a healthy diet, exercising and sleeping well through the stressful times may buffer against the negative impacts of stress — on a cellular level.