Add Yahoo as a preferred source to see more of our stories on Google. As we sleep, the brain's "glymphatic system" helps wash away metabolic waste in the organ. | Credit: ArtistGNDphotography/Getty ...

You've probably already noticed what happens to your day when you don't get the recommended 7 hours of sleep the night before. You might not be as alert as usual, or you may find yourself with a ...

All mammals sleep, yet we are note entirely sure what benefits it provides. Numerous theories exist, including processing the previous day’s memories. One idea that has gained wide acceptance is that ...

A new study links tau pathology to disrupted sleep in Alzheimer's disease. Sleep expert Dr. Wendy Troxel discusses how ...

Researchershave found that brain cell activity during sleep is responsible for propelling fluid into, through and out of the brain, cleaning it of debris. There lies a paradox in sleep. Its apparent ...

New research indicates physical activity may play a more crucial role than sleep in maintaining brain health by facilitating the removal of toxins, challenging the traditional view that sleep ...

The brain has its own waste disposal system – known as the glymphatic system – that’s thought to be more active when we sleep. But disrupted sleep might hinder this waste disposal system and slow the ...

Ever noticed how a solid night’s sleep in a completely dark room leaves you feeling refreshed in ways that sleeping with even tiny light sources just doesn’t? There’s actually some fascinating science ...

There lies a paradox in sleep. Its apparent tranquility juxtaposes with the brain’s bustling activity. The night is still, but the brain is far from dormant. During sleep, brain cells produce bursts ...

The findings show that mice cleaned more toxins and metabolites from their brains when they were awake than when they were asleep or anesthetized. A long-term lack of sufficient sleep is linked to ...