Mohana Ravindranath is a freelance health, science, and tech journalist and a 2025 Association for Health Care Journalists fellow. She was previously a Bay Area health tech correspondent for STAT. As ...
Those cheap DIY lead test swabs many families keep in a kitchen drawer can flag sky-high contamination, but often whiff on ...
Firms like Function Health and Oura market regular blood tests to people wanting to take their health into their own hands.