The scientific discoveries that help us understand modern medicine.
Analyzing tumor DNA in blood and urine may expand the options for monitoring the disease and help personalize treatment decisions.
A trial of nearly 10,000 participants found a cardiovascular benefit with atorvastatin but did not show that it extended life free of dementia or persistent physical disability.
The trend blends useful habits, devices, supplements and risky practices. Experts explain what is backed by science, what calls for caution and when to seek care.
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