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  2. Central nervous system fatigue - Wikipedia

    en.wikipedia.org/wiki/Central_Nervous_System_Fatigue

    In the brain, serotonin is a neurotransmitter and regulates arousal, behavior, sleep, and mood, among other things. [9] During prolonged exercise where central nervous system fatigue is present, serotonin levels in the brain are higher than normal physiological conditions; these higher levels can increase perceptions of effort and peripheral muscle fatigue. [9]

  3. Neurobiological effects of physical exercise - Wikipedia

    en.wikipedia.org/wiki/Neurobiological_effects_of...

    Neuroplasticity is the process by which neurons adapt to a disturbance over time, and most often occurs in response to repeated exposure to stimuli. [27] Aerobic exercise increases the production of neurotrophic factors [note 1] (e.g., BDNF, IGF-1, VEGF) which mediate improvements in cognitive functions and various forms of memory by promoting blood vessel formation in the brain, adult ...

  4. Serotonin - Wikipedia

    en.wikipedia.org/wiki/Serotonin

    Serotonin (/ ˌ s ɛr ə ˈ t oʊ n ɪ n, ˌ s ɪər ə-/) [6] [7] [8] or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.Its biological function is complex, touching on diverse functions including mood, cognition, reward, learning, memory, and numerous physiological processes such as vomiting and vasoconstriction.

  5. This Is What Happens to Your Brain When You Orgasm ... - AOL

    www.aol.com/entertainment/happens-brain-orgasm...

    Serotonin Is Released Another part of this sexy equation is serotonin—a neurotransmitter and hormone, commonly referred to as the “happy chemical,” that plays a role in regulating mood.

  6. Biology of depression - Wikipedia

    en.wikipedia.org/wiki/Biology_of_depression

    The serotonin "chemical imbalance" theory of depression, proposed in the 1960s, [38] is not supported by the available scientific evidence. [ 38 ] [ 39 ] SSRIs alter the balance of serotonin inside and outside of neurons: their clinical antidepressant effect (which is robust in severe depression [ 40 ] ) is likely due to more complex changes in ...

  7. Types of PTSD: From Symptoms to Treatment - AOL

    www.aol.com/types-ptsd-symptoms-treatment...

    These medications work by optimizing serotonin — colloquially referred to as the “feel-good chemical” — activity in the brain. Two SSRIs, sertraline (Zoloft) and paroxetine (Paxil), are ...

  8. Reward system - Wikipedia

    en.wikipedia.org/wiki/Reward_system

    The reward system (the mesocorticolimbic circuit) is a group of neural structures responsible for incentive salience (i.e., "wanting"; desire or craving for a reward and motivation), associative learning (primarily positive reinforcement and classical conditioning), and positively-valenced emotions, particularly ones involving pleasure as a core component (e.g., joy, euphoria and ecstasy).

  9. Expert tips to handle the winter blues - AOL

    www.aol.com/expert-tips-handle-winter-blues...

    Physical activity has been shown to boost mood, decrease symptoms of depression, and reduce stress. If it gets darker outside earlier in the winter, try to take short walks throughout the day to ...