Medically reviewed by Jeffrey S. Lander, MD Key Takeaways S1 and S2 are the normal heart sounds you hear when the heart ...

So, he and his colleagues induced heart attacks in mice and examined responses in the vagus nerve, which carries signals ...

Add Yahoo as a preferred source to see more of our stories on Google. Recognizing the signs early increases the chances of surviving a heart attack. You should also remember these five key steps. This ...

Researchers discovered a feedback loop between nerve cells, the immune system and the heart. They think it shows promise as a ...