The blood vessels feeding your brain can sustain damage without an obvious warning. Scientists have now linked higher consumption of ultraprocessed foods to signs of that damage in middle-aged adults, ...

In the brains of people with Alzheimer's and certain other types of dementia, two proteins called amyloid-beta and tau start misbehaving in different ways – though it's not clear if these ...

As social media says, microplastics are this generation's lead and asbestos: useful things that seemed hunky-dory – until they weren't. Plastics are ubiquitous because they're durable, versatile, and ...

A population of once-rare hybrid crabs has surged to record numbers, following a marine heatwave that hit the Bering Sea in 2018. This dramatic increase in hybrid crabs is not something marine ...