The Role of Hormones for the Nervous System

Endocrine Society

Have you ever wondered why you feel so crazy sometimes? Why you're suddenly craving chocolate, or why you can't seem to fall asleep? It's probably your hormones.

Hormones are chemical messengers that are produced by glands in the body and released into our bloodstream. They travel to specific tissues, bind to specific receptors, and trigger a cascade of events that ultimately lead to a change in the function of the tissue. They're basically little dictators that control our bodies. 

The nervous system is a complex network of cells that controls all aspects of our body, from our thoughts to our movements. Hormones have a critical role in the nervous system by influencing the development and function of neurons, the production of neurotransmitters, and the activity of brain circuits.

Some of the most important hormones for the nervous system include:

1. Thyroid hormones are created in the thyroid gland and help regulate metabolism, growth, and development. They also play a role in cognitive function.
2. Cortisol is created by the adrenal gland and helps the body respond to stress by increasing heart rate, blood pressure, and blood sugar levels. Cortisol can have negative effects on the nervous system, such as impairing memory and learning. 
3. Estrogen is produced by the ovaries and it plays a role in the development and function of the reproductive system. Estrogen can improve cognitive function and protect against neurodegenerative diseases. 
4. Testosterone is produced by the testes and it plays a role in the development and function of the reproductive system. Just like estrogen, testosterone can improve cognitive function and protect against neurodegenerative diseases. 

Hormones and the nervous system work together in a complex way to regulate our behavior, emotions, and thoughts. Without hormones, humans couldn't function and grow the way they're supposed to. Even if we feel crazy sometimes, we have to thank hormones for keeping us alive and working.