Implanting sensors in fish to monitor their stress levels in the wild Measuring heart rate continuously can show how long it truly takes for fish to recover from stressful events.

Measuring heart rate continuously can show how long it truly takes for fish to recover from stressful events.

Consider Scheduling Your Open Heart Surgery For the Afternoon Afternoon surgeries seem to have fewer adverse outcomes than morning surgeries for aortic valve replacements because of changes in circadian rhythm genes

Researchers found a gene that, when it is suppressed, reduces injury to the heart valve during the sleep/wake transition in mice. Who knew that the circadian rhythm genes could have such a profound impact on our physiology?