American Heart Association

Health

Are you getting enough omega-3 fatty acids?

Omega-3 fatty acids play an important role in heart and brain health. They've been linked to a stronger immune system, reduced inflammation and lower blood pressure and triglycerides, reducing the risk for heart disease and ...

Cardiology

A minute of secondhand marijuana smoke may damage blood vessels

Rats' blood vessels took at least three times longer to recover function after only a minute of breathing secondhand marijuana smoke, compared to recovery after a minute of breathing secondhand tobacco smoke, according to ...

Cardiology

First patients receive lab-grown blood vessels from donor cells

For the first time, blood vessels created in the lab from donor skin cells were successfully implanted in patients. Functioning blood vessels that aren't rejected by the immune system could be used to make durable shunts ...

Diseases, Conditions, Syndromes

COVID-19 science: Understanding the basics of 'herd immunity'

Recently I heard a medical "expert" on the news incorrectly define the term "herd immunity." It's a new phrase for many people, but we're hearing about it more and more, so it's important to understand exactly what it is.

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