Four common causes and some helpful tips on what you can do to alleviate sleep problems according to science
A young solar system does not just build planets from dust and gas. It can also be shaped by what happens nearby, including the death of a massive star. New research suggests that a supernova at the right distance could quietly change a planet’s ingredients from the start, and that this setup may be more common than scientists once assumed.
Most of us think of dentists when our gums are sore, not brain scans. Yet a new study hints that what’s happening along the gumline may show up deep inside the brain.
Here’s what the scientists measured, what it could mean, and how to protect yourself while we wait for more answers.