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Finding breast cancer early saves lives. But cancer isn't the only health risk a mammogram can detect, according to new research.

Do you know how to respond to an opioid overdose? These four steps can save a life.

A new before-and-after study found changes to brain tissue after COVID-19—even when the disease was mild. Here's what we know.

Dementia is common—but it isn’t inevitable. Tackling these 12 potential causes may help prevent it.