Fill in the application form Along with your passport and your visa support documents, you will need to submit a completed Visa Application Form. All applicants for Russian visas now have to fill out their application on the website of the Ministry of Foreign Affairs here.
Serotonin and Behavior. Serotonin is a common neuromediator in the brain. It belongs to the group of so-called biogenic amines, relatively simple chemicals that facilitate the transfer of signals between the cells of the body.
Around 95 percent of the body's serotonin is produced in the intestinal tract, says Dr. Chait. While the serotonin in your brain regulates mood, in the gut, it promotes the growth of nerve cells and alerts the immune system to foreign invaders like viruses and bacteria.