Health

By Katie Hunt, CNN Like many people, historian A. Roger Ekirch thought that sleep was a biological constant — that eight hours of rest a night…

By Dakin Andone and Susannah Cullinane, CNN About 24% of US hospitals are reporting a “critical staffing shortage,” according to data…

By Eryn Mathewson, CNN The last 12 months have been weird for me. I’m a pretty healthy 39-year-old marathon runner. And yet I had a heart…

By Travis Caldwell, CNN As a Covid-19 testing shortage compounds a burgeoning crisis of new hospitalizations, more states are racing to help…

By Jamie Gumbrecht, Naomi Thomas and Jen Christensen, CNN The US Food and Drug Administration is cautioning against using self-collected throat swabs…

By Jen Christensen, CNN Many people are hearing from their doctors that they have a “mild” Covid-19 infection amid a surge of the highly…

By Madeline Holcombe, CNN As a professionally trained dancer for nearly 20 years, I’ve found that a combination of pirouettes and leaps across…

By Madeline Holcombe, CNN The Omicron variant has sent cases of Covid-19 surging once again, and many businesses, workplaces and schools have…

By John Bonifield, CNN The US Centers for Disease Control and Prevention updated its guidance for Covid-19 prevention in K-12 schools on Thursday,…

By Jen Christensen, CNN If you caught Covid-19 over the holidays — and with the highly contagious Omicron variant in circulation, record…

By Deidre McPhillips, CNN After getting a dose of Covid-19 vaccine, women had an average menstrual cycle length of about one day longer than usual,…

By Naomi Thomas, Virginia Langmaid and Jamie Gumbrecht, CNN Former health advisers to President Joe Biden say the US strategy for the Covid-19…

By Dr. Sanjay Gupta, CNN Chief Medical Correspondent With more than a half-million Americans being officially diagnosed with Covid-19 every day, the…

By Melanie Radzicki McManus, CNN Most people know working out is good for your health, both physical and mental. But staying motivated —…

By Sandee LaMotte, CNN Wearing headsets, 18 subjects lay quietly while a functional magnetic resonance imaging machine (fMRI) droned on around their…

By Sandee LaMotte, CNN Wearing headsets, 18 subjects lay quietly while a functional magnetic resonance imaging machine (fMRI) droned on around their…

By Katia Hetter, CNN Schools are shutting down and children’s hospitals are filling up with young patients sick from the latest, most highly…

By Megan Marples, CNN Homes adorned with twinkling holiday lights are a common sight in December, but by January, many lights are gone. Not this…