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Cortisolnew.pptxCortisol
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What is Cortisol?
Cortisol -Cortisol is a steroid hormone that regulates a wide range of vital processes throughout the body, including metabolism and the immune response. It also has a very important role in helping the body respond to stress.
Cortisol is a steroid hormone, one of the glucocorticoids, made in the cortex of the adrenal glands and then released into the blood, which transports it all round the body. Almost every cell contains receptors for cortisol and so cortisol can have lots of different actions depending on which sort of cells it is acting upon.
How is Cortisol Controlled?
Blood levels of cortisol vary throughout the day, but generally are higher in the morning when we wake up, and then fall throughout the day. This is called a diurnal rhythm. In people that work at night, this pattern is reversed, so the timing of cortisol release is clearly linked to daily activity patterns. In addition, in response to stress, extra cortisol is released to help the body to respond appropriately.
How is Cortisol Controlled?
The secretion of cortisol is mainly controlled by three inter-communicating regions of the body; the hypothalamus in the brain, the pituitary gland and the adrenal gland. This is called the hypothalamic–pituitary–adrenal axis. When cortisol levels in the blood are low, a group of cells in a region of the brain called the hypothalamus releases corticotrophin-releasing hormone, which causes the pituitary gland to secrete another hormone, adrenocorticotropic hormone, into the bloodstream. High levels of adrenocorticotropic hormone are detected in the adrenal glands and stimulate the secretion of cortisol, causing blood levels of cortisol to rise.
Short video on Cortisol!!!
What happens If you have too much cortisol?
Too much cortisol over a prolonged period of time can lead to a condition called Cushing's syndrome. This can be caused by a wide range of factors, such as a tumor that produces adrenocorticotropic hormone (and therefore increases cortisol secretion), or taking certain types of drugs.
rapid weight gain mainly in the face, chest and abdomen contrasted with slender arms and legs
a flushed and round face
high blood pressure
osteoporosis
skin changes (bruises and purple stretch marks)
muscle weakness
mood swings, which show as anxiety, depression or irritability
increased thirst and frequency of urination.
What happens if you have too little cortisol?
Too little cortisol may be due to a problem in the pituitary gland or the adrenal gland (Addison's disease). The onset of symptoms is often very gradual. Symptoms may include fatigue, dizziness (especially upon standing), weight loss, muscle weakness, mood changes and the darkening of regions of the skin. Without treatment, this is a potentially life-threatening condition.
Do the results surprise you or are they what was expected? Why or why not?
Age 12-17
Time?
Eating habits
Normal cortisol levels- blood samples? Normal cortisol levels are usually highest early in the morning and lowest about midnight. Normal values for a blood sample taken at 8 in the morning are 5 to 25 mcg/dL or 140 to 690 nmol/L.
Any medical issues
Risk for injury
Perform correlations between the hormones.
These hormones basically fall into a category of
anabolic and catabolic hormones. Anabolic hormones, which are
testosterone and growth hormones help muscle synthesis. Anabolic
hormones promote immunity, energy, and fat burning. Growth hormones
are released during the early stages of deep sleep. Catabolic hormones,
which is cortisol promote muscle degradation. The brain perceives
moderate exercise as a form of physical stress and help the fight or flight
scenario. Poor diet, lack of sleep and mental stress increase cortisol
release. The ultimate goal in a healthy strength program is improving
anabolic hormone release while teaching the body to release less cortisol
From the data, when would you suggest that her daughter practice and why?
7am? From the data, when would you suggest that her daughter practice and why?
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CortisolTestosterone
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HormoneCortisolTestosterone
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HormoneCortisolTestosterone
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HormoneCortisolTestosterone
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Hormone
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33866662048966120429771215095311943589419
44237572552173524466834255555932748998529
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224254551942753421448312233956292444552226
234144861940456317437343183786541843157417
244005282037960919417375183577001841066420
Friday
Cortisol and Testosterone Measured nmol/L, Growth Hormone measrued in pmol/LHour (start
of day
midnight)
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