"I'm fine" and "I'll take care of it" (even at capacity) can be nervous system signals. Decoding them makes hard moments easier to navigate.

How Does the Nervous System Work? The messages traveling in your nerves are sent through billions of nerve cells called neurons. The spaces between these cells are called synapses. The cells are ...

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. Stress is ...

One for those who have been feeling a little…off key.

Opinions expressed by Entrepreneur contributors are their own. Pushing yourself to your edges, pulling all-nighters, procrastinating or pursuing activities under pressure can lead to unreasonable and ...

We’ve turned survival responses into a black-and-white idea: pathology or wisdom. This is what we miss when we do that, and ...

Medically reviewed by Michael Menna, DO Key Takeaways The circulatory system carries oxygen and nutrients throughout the body and removes waste.The lymphatic system helps fight disease by creating and ...