You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously ...

SVT results in the heart beating at much faster rate than normal, and can be triggered by exercise, lack of sleep, ...

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 ...

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 ...