Feeling lightheaded when you rise quickly is common, but frequent spells shouldn't be ignored. Doctors share simple ways to ...

Higher ambient temperatures significantly amplify physiological stress reactivity, affecting the HPA axis and autonomic nervous system activity. Physiological stress markers increased at warmer ...

This international study, from investigators in Germany and Austria, looked at the effect sacubitril/valsartan can have among patients who have heart failure with reduced ejection fraction (HFrEF) and ...

A rat study has found that aerobic exercise may reshape nerves that control the heart. However, the impact was not the same ...

Autoimmune autonomic ganglionopathy (AAG) occurs when your immune system attacks healthy nerve cells in your autonomic nervous system. It causes symptoms like dizziness or faintness. Autoimmune ...

Cardiologist who survived a heart attack reveals symptoms besides chest pain he experienced, including profuse sweating and ...

Some docs think stress is the leading risk factor for poor heart health. Here's how to train your heart to get better at ...

You’re sitting in a perfectly comfortable room when suddenly a quick shiver ripples through your body. It’s not cold, you’re not scared, and you’re definitely not coming down with anything—yet your ...