Can a person survive without the sympathetic nervous system?

The sympathetic nervous system (SNS) is an important part of the autonomic nervous system that helps regulate the body's response to stress. It is involved in a variety of functions, including:

- Increasing heart rate and blood pressure

- Dilating pupils

- Relaxing airways

- Slowing digestion

- Stimulating the release of adrenaline

While the SNS is important for these functions, it is not essential for life. People who have lost the function of the SNS can survive, although they may have difficulty responding to stress.

Some of the challenges that people with SNS damage face include:

- Difficulty regulating blood pressure and heart rate

- Difficulty breathing

- Difficulty digesting food

- Increased risk of infection

- Difficulty sleeping

- Emotional problems

Despite these challenges, people with SNS damage can live full and active lives. With proper medical care, they can manage their symptoms and improve their quality of life.