Sudden (acute) colitis. If your dog suddenly develops colitis, it is probably induced by stress, such as boarding, moving, severe weather or some other change in lifestyle, or it could be from a dietary indiscretion, such as emptying the garbage can, too many treats or a sudden change in diet.
âVitamin D is needed for the production of brain chemicals such as dopamine and norepinephrine and acetylcholine. These brain chemicals are known to improve and increase attention span, and its concentration in the brain is directly correlated with the ability to focus for sustained periods of time.â.
School of Medicine, Family Medicine answered. Chemicals released in the brain in response to happiness include endorphins, dopamine, serotonin and oxytocin. Medicine has created drugs to target these receptors in the brain.However, there are natural ways to activate these parts of the brain.chool of Medicine, Family Medicine answered. Chemicals released in the brain in response to happiness include endorphins, dopamine, serotonin and oxytocin. Medicine has created drugs to target these receptors in the brain.