recycling

For decades, scientists have found that pulse oximeters, devices that estimate blood-oxygen saturation, can be affected by a person’s skin color. In 2021, the FDA issued a warning about this limitation of pulse oximeters. The agency says…

It’s Tuesday night. In front of your house sits a large blue bin, full of newspaper, cardboard, bottles, cans, foil take-out trays, and empty yogurt containers. You may feel virtuous, thinking you’re doing your part to reduce waste. But…