If you’ve already fallen off your workout routine, you’re not alone—and it doesn’t mean you’re failing. January 9 is known as Quitter’s Day, the point when motivation dips and New Year’s resolutions ...

Pupil dilation provides a physiological readout of information gain during the brain's internal process of belief updating in the context of associative learning.

We spoke with experts about whether you should be putting apple cider vinegar in your water. Here's what else they think you should know. Amelia Ti is a Registered Dietitian (RD) and Certified ...