California health officials warned people to stop foraging after 24 people were sickened. Two needed liver transplants and one died.

A swarm of small earthquakes jolted San Ramon over the last month. Scientists said the earthquakes are normal and aren’t indicative of the big one.

Researchers identified two immune signals that may help explain why a small percentage of young males develop chest pain or shortness of breath after mRNA COVID-19 shots.

California clinics' doors are flying open, patients are lining up and ketamine is being prescribed off-label for everything from depression to chronic pain. What’s missing are clear rules to guide its use.

This week’s extra high tide could flood shorelines across the Bay Area, offering a preview of how rising seas could reshape the region.

Soaring health insurance costs are forcing some Californians to make tough choices — from dropping coverage to leaving the state or even the country — as federal subsidies expire and premiums surge.

California’s state veterinarian banned all chicken shows this year to limit the spread of bird flu, leaving county fairs across the state devoid of chickens.

A suite of federal incentives to help pay for new electric appliances will sunset Dec. 31. Here’s how to take advantage of them while you can.

A South Bay student uses drone technology to show what’s at stake as rising seas threaten the Bay Area wetlands that act as a natural barrier to flooding.

Hidden beneath California’s coastal dunes, a newly identified spider species — Aptostichus ramirezae — reveals how evolution thrives even in fragile, shifting sands.