The heart’s “mini-brain” is independent and highly localized, according to researchers at the Karolinska Institutet in Stockholm, Sweden. The findings could lead to new research into arrhythmia, ...

Add Yahoo as a preferred source to see more of our stories on Google. Roughly one percent of infants are born with heart defects every year. The majority of these cases only require a temporary ...

Researchers at Northwestern University just found a way to make a temporary pacemaker that’s controlled by light—and it’s smaller than a grain of rice. A study on the new device, published last week ...

Almost all living creatures have an endogenous clock that enables them to adapt their behavior and body functions to the natural rhythm of day and night. This so-called circadian rhythm is controlled ...