We all know there's a heart in the body; we've been reading about it since childhood. As long as it beats, humans live. Let's tell you about the second heart and where it is located. Where is the ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Your heart often whispers warnings before serious issues arise. Pay attention to unexplained shortness of breath during ...

In this video, Mikhail Varshavski, DO -- who goes by "Dr. Mike" on social media -- gives a history lesson on the heart, including cultural depictions and the evolution of our understanding of anatomy.

Over the course of just one month in space, engineered human heart tissue got weaker, its ‘beating’ patterns became irregular and it underwent molecular and genetic changes that mimicked the effect of ...