It is well known that the sympathetic nervous system has an important role in regulating both the frequency of cardiac-impulse generation and the functional refractory period of atrioventricular ...

The refractory period is the time between orgasm and when you feel ready to be sexually aroused ... This can interfere with the cardiac functions necessary for ... The sexual response cycle.

Corrected QT intervals and the ventricular refractory period were also ... be explained by the differences in the action potential duration or cardiac cycle length between the ...

RELATED: Impulse Dynamics bags $45M for chronic heart failure device It’s also designed for those with a left ventricular ejection fraction—or the percentage of blood discharged from the heart ...