Here’s some of HealthDay’s top stories for Thursday, July 1:

Sleep, exercise & your odds of a long life. New research shows that a history of poor sleep could shave life expectancy. But there was good news, too: regular exercise can counter the effect. Read more

Healthy diets can thwart cancer, but most don’t follow one. A new study of 31,000 Americans finds the vast majority aren’t eating in a way that could lower their odds for a variety of tumors. Read more

A new treatment for celiac disease? Sticking to a strict, gluten-free diet is the only way people with celiac disease can curb the illness. But an experimental drug appears to inhibit an enzyme that helps drive the condition. Read more

CDC stands behind ‘no mask’ guideline for vaccinated. Responding to the spread of the COVID-19 Delta variant, this week the World Health Organization and LA county reinstated masking advisories for all. But the CDC’s director said Wednesday that masks are still not required for vaccinated Americans. Read more