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The "happiness hormone" dopamine has a longer-lasting effect on the organism than serotonin and increases the feeling of well-being if the concentration is high enough - this is why it is also called the feel-good hormone or happiness hormone. You feel fit, alert and simply good.
Bright light also seems to be able to stimulate serotonin production. Studies show that serotonin production and release in the brain changes depending on the season and time of day [4]. Daylight lamps, for example, which are used against the so-called winter blues and are supposed to stimulate serotonin production, are based on this effect. Conclusion on serotonin production It is possible to determine the serotonin content in the blood to obtain indications of a possible carcinoid tumor. With regard to depression or other mental illnesses, the serotonin value determined from the blood has no diagnostic value, since the messenger substance cannot pass the blood-brain barrier and therefore no statement can be made about the serotonin concentration in the brain. SourceThat depends on the purpose for which the serotonin level is to be determined. Anyone who wants to know whether their serotonin level in the brain is high enough will not gain any insights into this with a blood test. This is because there is many times more serotonin in the digestive tract and lungs than in the brain, and the serotonin in the blood cannot cross the blood-brain barrier. Therefore, the concentration of serotonin in the blood has little significance for the serotonin content in the brain. The blood-brain barrier is also the reason why serotonin is produced not only in the intestine but also in the brain, where the neurotransmitter also performs important functions. Exactly this often unconscious expectation of reward also plays an important role in addictions. Substances such as alcohol, cocaine or nicotine enhance the effect of dopamine and the associated consciously or unconsciously perceived feeling of happiness in the same way as certain behaviours are stimulated by the reward system. Wie lange es dauert, bis der Körper Serotonin hergestellt hat, ist von verschiedenen Faktoren abhängig und deshalb individuell höchst unterschiedlich. Bis die Serotoninspeicher nach einer fast vollständigen Entleerung wieder aufgefüllt sind, kann es einige Tage dauern. The exact relationship between endorphins and depression has not yet been conclusively established. It is known, however, that serotonin levels are low in depression and that serotonin reuptake inhibitors (SSRIs) alleviate the typical symptoms. However, endorphins released naturally, for example through exercise, can also have a positive effect. Scientists at the Boston University School of Medicine showed in a 2004 review that daily exercise (30 minutes of running), which releases serotonin, can improve symptoms after just a few days. What problems can an endorphin deficiency cause?
Each "happiness hormone" has specific tasks and effects. Some endorphins increase interest and desire for certain activities, they increase drive and provide a feeling of happiness (dopamine). Norepinephrine also increases motivation, activity and performance levels. Other endorphins increase the strength of bonding between people (oxytocin), while still other endorphins (such as serotonin) reduce anxiety, stress and aggression and make people feel balanced and content. Other functions of endorphins Alternatively, the serotonin content in the body can be determined via urine. In everyday medical practice, it is common to use the collected urine from a 24-hour period for this purpose. However, it is not the serotonin itself that is measured, but a degradation product of the neurotransmitter, hydroxyindoleacetic acid (5-HIES for short). The amount of HIES measured in the urine allows indirect conclusions to be drawn about the serotonin level in the body.However, low serotonin levels in the blood have not yet had any clinical significance. It is possible, however, that this may change in the future as research identifies more links between serotonin in the blood and physical or mental illness. Conclusion on serotonin measurement in the blood It is possible to increase dopamine with special dietary supplements. In addition, you are also able to take in the important messenger substance through food and thus prevent a deficiency. The range of motivation of successful people is partly due to how the dopamine system works," says researcher Michael Treadway, PhD, a clinical fellow at McLean Hospital and Harvard Medical School. Physical mood swings are physical . They are usually preceded by a hormonal change in the body. For example, during the menstrual cycle (PMS), pregnancy or during the menopause. These examples already show that hormonal mood swings affect women to a greater extent . A 2006 GFK study found that 60% of women between the ages of 25 and 45 experience mood swings. That corresponds to 2 out of 3 women. [ 1 ] Interestingly, 80% accept this emotional burden - without doing anything about it or consulting a doctor. Another physical cause can be thyroid dysfunction. Although the thyroid is a small organ, an underactive thyroid can cause prolonged fatigue and severe mood swings. mood swings period (PMS) An excessively high dopamine level, in turn, is often observed together with the psychotic clinical picture of schizophrenia. Normally, the organism with its very complex mechanisms regulates temporarily occurring dopamine surpluses without any problems. However, there are substances, such as cocaine, which lead to an extraordinarily high dopamine release. In these cases, there is a restructuring in the brain that has a negative effect on certain processes and functions, resulting in psychosis.
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