Therefore, if you're planning a long journey, you should always apply for the Russian visa before you leave. It's possible to get a tourist visa support at any moment before your journey, however, you can only apply for a tourist visa not earlier than 90 days before the date of your first entry to Russia.
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.
Serotonin impacts every part of your body, from your emotions to your motor skills. Serotonin is considered a natural mood stabilizer and the chemical that helps sleeping, eating, and digesting. Serotonin also helps reduce depression, regulate anxiety, heal wounds, stimulate nausea, and maintain bone health.