People travel for many reasons—commuting, as part of their job, or to go shopping—and the time spent traveling differs from ...

A new study reveals that the brain’s responsiveness and capacity for learning shift with the time of day, governed by molecules like adenosine that link metabolism, sleep, and neural signaling.

Cardiac performance in patients with HF can be determined with measurement of the time for peak oxygen uptake to decrease by more than 12.5%.