NPR

Sick And Tired? Scientists Find Protein That Puts Flies To Sleep And Fights Infection

In the search for what triggers sleep, researchers stumbled upon a link between sleep and the immune system. A single fly gene gets turned on in sick flies, inducing sleep and an immune response.
After scientists screened over 8,000 genes in fruit flies, only one, which hadn't been described before, triggered sleepiness.

It's cold outside, you're sick and all you want to do is curl up under the covers until you feel better.

In fact, the need for sleep can be so strong when we're sick that this may be all we can do.

Scientists don't fully understand how this excessive sleepiness is different from your normal, everyday tiredness. Previous work in nematodes found a gene that dampens activity of wakefulness neurons in response to infection. Other research in mammals suggests elements of the immune response can influence behavior.

Overall, scientists still have a lot to learn about what makes

You’re reading a preview, subscribe to read more.

More from NPR

NPR4 min read
The Dos And Don'ts Of Lending Money
What do you do if a loved one asks to borrow a big sum of money from you? Experts weigh in on when it's OK to fork over the cash — and when you should probably say no.
NPR2 min readInternational Relations
Israeli Forces Take Control Of The Gaza Side Of The Rafah Crossing With Egypt
An Israeli tank brigade seized control Tuesday of the Gaza Strip side of the Rafah border crossing with Egypt, authorities said, as cease-fire negotiations with Hamas remain on a knife's edge.
NPR6 min readCrime & Violence
Taliban Affirms That Stoning Will Be Punishment For Adulterers — Especially Women
In a recording, the group's leader declared: "We will flog the women ... we will stone them to death in public [for crimes]." What does Islamic law say on the matter? And have stonings taken place?

Related Books & Audiobooks