TIL: About 95% of serotonin is produced in the gastrointestinal tract which is lined with a hundred million nerve cells, or neurons, that are influenced by bacteria. The inner workings of the digestive system don’t just help digest food, but also guide moods and emotions.

TIL: About 95% of serotonin is produced in the gastrointestinal tract which is lined with a hundred million nerve cells, or neurons, that are influenced by bacteria. The inner workings of the digestive system don’t just help digest food, but also guide moods and emotions.: http://bit.ly/2i9n2Hd Read more... http://bit.ly/2MPFDaC