Medical research

The rhythm of everything

Dawn triggers basic biological changes in the waking human body. As the sun rises, so does heart rate, blood pressure and body temperature. The liver, the kidneys and many natural processes also begin shifting from idle into ...

Medical research

Living by the clock: The science of chronobiology

The clock never seems to stop. Every day, it seems, we're fighting it: rushing to get to work, getting errands done, catching whatever sleep we can. There's never enough time to do what we need or want to do, and just when ...