The sympathetic nervous system, which helps your heart and other vital organs function all the time, increases activity in response to danger or stress, preparing the body for extra demands.

Alcohol can harm your heart, depending on how much you drink. Excess consumption can increase your risk of heart disease.

When your sympathetic nervous system is activated too often, it can lead to chronic stress, which may raise your blood pressure and increase your risk of heart attacks or strokes. On the other ...

Why the "rest and digest" system is crucial for well-being Medically reviewed by Steven Gans, MD Stress seriously affects your body, mind, and ability to feel like yourself. While you might feel ...

If the PSNS didn't exist, the sympathetic nervous system would take over during times of stress — and your body would not have a way of turning off its dramatic response. The PSNS controls your ...

Knowable Magazine shares how studies show psychological strain can accelerate tumors and asks if beta blockers slow them down ...

When an individual experiences ongoing stress over a long period, the body may remain in a near-constant state of fight or flight. This continual activation of the sympathetic nervous system can ...

We asked the experts to share the most common signs of stress in your sleep — plus top tips on how to destress for better sleep.

In response to an acute stress, the body's sympathetic nervous system is activated. When someone feels like they are operating in survival mode, common for those with ADHD, the sympathetic nervous ...

When stressed or anxious, the sympathetic branch dominates ... neural pathways that facilitate faster nervous system regulation during actual stress. Regular practitioners report that with ...

This amplification makes the natural fluctuations between sympathetic and parasympathetic ... it might be telling you. Is your nervous system resetting after stress? Are you processing an ...

Obesity causes insulin resistance by increasing activation of the sympathetic nervous system and the release of the stress hormone norepinephrine, according to a new study. A study from Rutgers ...