Your Health

COVID-19 vaccines appear to work against the new coronavirus strains, though scientists are warily watching a variant first seen in South Africa. Vaccines may need updates to keep pace with the virus.

The Biden administration is promising 61 million rapid at-home tests by the summer. But critics say that's too few and way too late.

With vaccine still scarce, and eligibility differing from place to place, some people have easier access to "extra" doses than others. Careful, ethicists warn. Going out of turn is a slippery slope.

Sleep is crucial for our health — and there are alarming consequences when we don't get enough. Matthew Walker explores the many benefits of a full night of sleep, and how to make sleep a priority.