Our bodies are replete with bacteria and other microorganisms that coexist without harming us, but we do occasionally suffer from infections that cause harm. Bacterial infection? No problem—just ...

"It has been a paradox that we repeatedly find the same bacterium in connection with colorectal cancer, while at the same time it is a completely normal part of the gut in healthy people," says ...

The gut bacterium Bacteroides fragilis has long presented researchers with a paradox. It has been associated with colorectal cancer, yet it also lives quite happily in most healthy people. A study by ...

By Carole Tanzer Miller HealthDay ReporterSATURDAY, March 7, 2026 (HealthDay News) — No matter how much you brush, floss and ...

An oncologist explains the findings.

NPR's Ayesha Rascoe asks Dr. Rebecca Smith-Bindman about her research indicating CT scans, which emit radiation, will cause some 100,000 cases of cancer annually. X-rays and CT scans have ...

Vaping has not been around long enough for researchers to fully understand the long-term health impacts. However, the aerosol a person inhales when vaping contains some chemicals that may be linked to ...