As one who routinely gives short shrift to sleep, cutting corners whenever possible, I read the newspaper article with great interest. Reporting on a study published in the journal Science, the article said that new imaging techniques have allowed researchers to better understand how the brain cleans cells during sleep.

Apparently, the space between cells expands while we’re snoozing — which gives a network that drains cellular waste from the brain more space to flush out the toxins.When we sleep less, the brain can’t go about this housekeeping function as efficiently — and toxins build up. No wonder my head feels foggy the morning after I’ve slept five hours or less.

This finding explains the restorative nature of sleep and may also help scientists better understand Alzheimer’s and Parkinson’s diseases.

All I know is, I’ve gone to bed earlier and slept later ever since I read the article. And that’s a good thing.