It’s an all-too-familiar scenario for many parents: Your preschooler starts to act up just as the phone rings or you start dinner. Maybe you hand over an iPad or smartphone to soothe the child so you can get down to business. And this probably does the trick. But if this is your go-to strategy, your…  read on >  read on >

For some people, dozens of U.S.-approved drugs can lead to a rare but often fatal brain infection. Researchers have now confirmed a strong link between four genetic mutations and this illness, called progressive multifocal leukoencephalopathy (PML). A new study found that in people taking PML-inducing drugs, having one of four genetic variants increased the odds…  read on >  read on >

One might expect identical twins to have the same health outcomes. But it’s not just genetics that makes a notable difference in their weight and in how their genes behave, according to a new study. Exercise can alter genetic markers of metabolic disease — any of the diseases or disorders that disrupt normal metabolism. The…  read on >

The updated bivalent COVID-19 boosters are now approved for use in children as young as 6 months of age, the U.S. Food and Drug Administration announced today. Children can receive either a Moderna or Pfizer-BioNTech bivalent booster shot, although the rules differ depending on their age and what type of vaccine they got as their…  read on >  read on >