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Why Can’t I Sleep?

Insomnia is miserable, and lost sleep can harm our health. Now, researchers are seeing the promise of solutions in our genes.

Photo of a man and woman in bed; the woman is fast asleep and the man eats popcorn, wide awake.

Healthy Sleep May Rely on Long-Overlooked Brain Cells

Researchers at UCSF have confirmed that a different, long under-studied type of brain cell – astrocytes, named for their star-like shape – can influence how long and how deeply animals sleep.

microscopic image of Astrocyte