Sleep disorders

CPAP helps cut heart risks—but you have to actually use it

For sufferers of sleep apnea, continuous positive airway pressure (CPAP) machines may guard against having a second heart attack, stroke or other cardiovascular crisis, but they have to use it consistently, a new study finds.

Oncology & Cancer

Q&A: Why women should start getting mammograms at age 40

The United States Preventive Services Task Force (USPSTF) issued new draft guidelines this year recommending that women start breast cancer screening at a younger age. Leading breast cancer screening expert Elizabeth Morris, ...

Neuroscience

New study uncovers origin of 'conscious awareness'

Living things act with purpose. But where does purpose come from? How do humans make sense of their relation to the world and realize their ability to effect change? These fundamental questions of "agency"—acting with purpose—have ...

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