Are Marathons and Other Extreme Running Linked to Colon Cancer?

A small, preliminary study found that marathoners were much more likely to have precancerous growths. Experts aren’t sure why.

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This Test Can See a Heart Attack in Your Future

Coronary artery calcium testing can reveal plaque in arteries, offering a more precise estimate of a patient’s risk. Yet the test remains underused.

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Many Lung Cancers Are Now in Nonsmokers. Scientists Want to Know Why.

The face of lung cancer — once older men with a history of smoking — has changed.

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Chinese Officials Helped Cover Up Lead Poisoning of Children, Report Says

Health officials tampered with blood tests of some of the more than 200 children who were sickened by food tainted with lead, an investigation found.

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What You Need to Know about Cancer Screening

Regular screening can bend the odds in your favor when it comes to four types of cancers. The science is less clear for the rest.

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What to Know About Measles When Traveling

Summer travel raises fears that the highly infectious virus will spread. Here’s how to protect yourself and your family.

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Maybe It’s Not Just Aging. Maybe It’s Anemia.

Significant numbers of older people have the condition. Many find relief with an effective treatment that is being more widely prescribed.

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Breast Cancer Patients Get Early Warning of Faltering Drugs With Blood Test

A study found that women could switch drugs without waiting for scans showing cancer progression, which improved their quality of life.

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An Expensive Alzheimer’s Lifestyle Plan Offers False Hope, Experts Say

Thousands of people have paid for Dale Bredesen’s unconventional program to reverse Alzheimer’s symptoms. The medical establishment says there’s little to no proof it works.

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Biden Did Not Get Prostate Cancer Diagnosis Before Last Week, Spokesman Says

Former President Joseph R. Biden Jr.’s office pushed back on speculation that there had been a coverup around the illness.

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