Cancer Archive

Most cancer screening guidelines recommend an upper age limit to cease regular testing. But older adults should ask their doctor whether the benefits of continuing screening outweigh the risks, which may include unnecessary treatments and potentially dangerous complications.

A 2026 study of more than 91,000 adults found that uninterrupted sitting raised risk for death from cancer. Replacing prolonged sitting with light, moderate, or vigorous activity significantly reduced risk, suggesting frequent movement breaks may help counter harms of sedentary behavior over time.

Early detection of colorectal cancer saves lives. Now there are more ways than ever to get screened (and fewer excuses not to). American Cancer Society screening guidelines now include colonoscopy, sigmoidoscopy, CT scanning, at-home stool testing, and blood testing.

Aging is the single biggest risk factor for developing cancer. As people get older, DNA damage accumulates in cells, and chronic inflammation and imbalances in gut bacteria become more common. All of these factors may contribute to the age-related increase in cancer cases.

An elevated lymphocyte count usually indicates a simple viral illness. Less often, it could indicate a blood cancer. How the number is calculated shapes what it may mean.

Nonmelanoma skin cancers are unlikely to be life-threatening, but they can cause disfiguration and other problems. The cancers should be removed.

Chemotherapy treatment in women can diminish hormone levels that affect sexual health and intimacy. It can also alter self-image, sex drive, and emotions. Research suggests anywhere from 40% to 100% of cancer survivors struggle with sexual dysfunction.

From x-ray treatments to other imaging tests, not all radiation is equal. See which exposures worry thyroid experts and which don’t.