CDC backs booster shots for Moderna, Johnson & Johnson vaccines. The agency on Thursday gave a thumbs up to decisions made earlier this week by the U.S. Food and Drug Administration, clearing the way for boosters to be administered to millions of Americans. Read more

Fatty liver disease is a silent killer, and it’s on the rise. Obese people are at high risk of excess fat deposits in their livers, and cases of the disease are ticking upwards as more Americans pile on far too many pounds, experts warn. Read more

Is a 5-minute test for marijuana use on the way? Because urine- or blood-based tests for pot use take days to process, ‘drugged’ driving is tougher to spot and confirm compared to drunk driving. But researchers believe they’re close to a saliva-based test for marijuana use that produces accurate results in about 5 minutes. Read more