Taken into consideration with existing knowledge, it appears likely that vertebrate hearts have a more sophisticated 'brain' ...

One overlooked consequence of early trauma is its impact on the body’s autonomic nervous system (ANS), which controls vital ...

Anxiety triggers the bodys fight or flight response causing heart palpitations through stress hormones and heightened ...

Heart rate variability is not just a metric on a wearable. It’s a driver of the nervous system and a usable signal for relaxation and resilience.

For example, the sympathetic nervous system activates the "fight-or-flight" response in reaction to danger, concentrating energy on immediate survival and halting less urgent functions such as ...

The sympathetic nervous system is responsible for fight-or-flight responses, "which are activated all too often in many of us, with all the things to worry about in our world today." Over ...

Brain cells are increasingly being found outside the brain, and now researchers have identified specific neurons in the abdomen that control some aspects of digestion.

Scientists have identified two types of brain cells in the abdomen that appear to control different aspects of digestion.

Stress and anxiety are a sign of the sympathetic nervous system escalating into the fight-or-flight response. A 2024 report by the Mayo Clinic indicates that relaxation techniques can reduce the ...