‘Where Are the Kids?’ School Is Back in Session, but Many Kindergarteners Are Missing

It didn’t take more than one day of virtual kindergarten for Ryan Greenberg’s 5-year-old daughter, Samantha, to break down in tears, begging to go back to regular school where she could see other kids face-to-face. “I’ll wear two masks,” she told him. But for Samantha, in Montclair, N.J., and for hundreds of thousands of other … Read more

What Your Blood Tells You About Cancer

Blood tests can tell us a lot about what’s going on in our bodies—from whether we’re eating too much sugar to whether we’re harboring any infectious diseases. Scientists lately have been working on ways to use similar diagnostic tools for cancer, which have the potential to dramatically increase the amount of information doctors use to … Read more