How often you should wash your sheets and towels, according to science - Popular Science

New research suggests that advanced colorectal cancer is becoming more common in young patients, raising concerns that warning signs may be missed or recognized too late. The findings were presented at the American Academy of Pediatrics 2026 National Conference & Exhibition Oct. 2-6, 2026, at the San Diego Convention Center. The study, "Clinical Presentation and Epidemiology of Pediatric and Adolescent Colorectal Carcinoma: A Pediatric Surgical Oncology Research Collaborative Study," reviewed the medical records of 84 patients age 21 or younger who were diagnosed with colorectal cancer between 2012 and 2023.

The spacecraft delivered materials and equipment for new research studies to the station.

Mud from a fjord shows an Atlantic air pattern brought wetter, colder spells to southern Greenland, a clue to how its ice may fare. Greenland’s ice is shrinking as the planet warms. But in the island’s southwest, rainfall and snowfall have been influenced by the same North Atlantic air-pressure pattern for at least 5,000 years. When that pattern tipped one way, the region turned wetter and colder. The record comes from mud on the floor of a Greenland fjord, and it suggests snowfall, not only temperature, shaped how the area’s ice grew and shrank. It doesn’t yet show how glaciers there will respond to the warming ahead. Johan Faust, a researcher at MARUM, the Center for Marine Environmental Sciences at the University of Bremen in Germany, led the work with colleagues in Germany, Norway, Denmark and Canada. A seesaw in the airThe pattern is called the North Atlantic Oscillation. It’s the difference in air pressure between a low that sits near Iceland and a high near the Azores, and it’s strongest in winter. When that difference is large, the pattern is in its positive phase. Northwestern Europe and southwestern Greenland both get more rain and snow.