what is serotonin

Serotonin is a neuromodulator that creates a bias among neural circuits and neurons in the brain and body, making some more active while making others less likely to be active. It is responsible for feelings of comfort and relaxation and is found in high levels in the neurons of the brain in an area called the raphae nucleus. While it is true that more than 90% of the serotonin produced is in our gut, the serotonin that primarily impacts our mood and mental state is in the neurons of the brain. Serotonin has been the subject of much research, particularly in relation to antidepressants such as selective serotonin reuptake inhibitors (SSRIs), which work by preventing the reuptake of serotonin into neurons, leading to elevated serotonin levels. In addition to prescription drugs, behavioral tools, nutritional tools, and supplementation tools can also tap into the serotonin system to positively impact our feelings of well-being. Various activities such as physical contact, hugging, holding hands, and cuddling with loved ones increase serotonin transmission and make people feel good. Gratitude is also known to elevate serotonin levels, along with exercise, a healthy diet, and reducing inflammation.