One amino acid can act like a hidden gate, deciding whether a bat coronavirus gets stopped or gets a human opening.Quick TakeA new study says the SARS-CoV-2 and RaTG13 versions of OrfB9 differ by...
Seventy-five minutes of brisk walking a week sounds almost too simple, yet the data say it can noticeably tilt your brain away from depression.Story...
The most dangerous thing about a thoracic aortic aneurysm is that it usually whispers before it explodes.Story SnapshotDoctors still argue over a simple question:...
Ebola and hantavirus can look like the flu at first, then turn dangerous before many people realize what is happening.Quick TakeBoth diseases can begin...