Sleep expert reveals why you still feel tired after 8 hours of shuteye Dr. Wendy Troxel shares why getting the recommended amount of nightly shuteye doesn't always leave people refreshed, and outlines the most common reasons for poor sleep quality. NEW You can now listen to Fox News articles! The secret to a healthier heart may not be a major lifestyle overhaul, but rather a series of small, sustainable daily habits. New research published in the European Journal of Preventive Cardiology found