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Sleep behavior undergoes substantial changes during adolescence. Some of these changes may be societal in humans, but other changes are hormonal. Another important change is the decrease in the number of hours of sleep, as compared to childhood, which gradually becomes identical to an adult.
Sleep epigenetics is the field of how epigenetics (heritable characteristics that do not involve changes in DNA sequence) affects sleep. Research in the field of epigenetics has proven the significance of various environmental experiences.
Waking up earlier in the morning increases the response. [11]Shift work: nurses working on morning shifts with very early awakening (between 4:00–5:30 a.m.) had a greater and prolonged cortisol awakening response than those on the late day shift (between 6:00–9:00 a.m.) or the night shift (between 11:00 a.m.–2:00 p.m.). [12]
"Adequate sleep allows the body to rest and repair itself, regulating hormones that influence blood pressure, inflammation and blood sugar levels—all of which are critically important for heart ...
Not only can hormones influence behavior, but also behavior and the environment can influence hormone concentration. [40] Thus, a feedback loop is formed, meaning behavior can affect hormone concentration, which in turn can affect behavior, which in turn can affect hormone concentration, and so on. [41]
Sleep loss can affect the basic metabolic functions of storing carbohydrates and regulating hormones. Reduction of sleep from eight hours to four hours produces changes in glucose tolerance and endocrine function. Researchers from the University of Chicago Medical Center followed 11 healthy young men for 16 consecutive nights.
Due to the various hormonal changes that take place when a person enters menopause, their risk of heart disease and cardiovascular problems increases, as research has shown.
In endocrinology, permissiveness is a biochemical phenomenon in which the presence of one hormone is required in order for another hormone to exert its full effects on a target cell. Hormones can interact in permissive, synergistic, or antagonistic ways. The chemical classes of hormones include amines, polypeptides, glycoproteins and steroids.