Questions: RE: Sleep Apnea Insulin ...Weight Gain... Fat Storage...Protein Synthesis...and... More
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Question:
How Does Sleep Apnea Cause Low Testosterone? I have chronic insomnia. Is this a cause of low testosterone also?
Answer:
Sleep Apnea causes numerous sleep arousals and this in turn is sleep deprivation. This increases insulin resistance and decreases levels of thyroid hormone.---The Lancet, 1999. Chronic insomnia yields sleep deprivation also, and can cause all these same problems. What is one of the major problems facing our teenagers today, as well as many other Americans? Sleep deprivation!
But first, some background.
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Let's look at the things Sleep Deprivation (decreased sleep) causes: : |
- Increased cortisol
- Increased adrenaline and nor-adrenaline; esp. adrenaline
- Increased insulin resistance which generates a rise in insulin
- Decreased thyroid hormone (T4 & T3)
- Decreases testosterone (sleep length is critical for testosterone) synthesis
- Decreased prolactin which implies decreased immunocompetence.
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Note: : |
- Testosterone peaks around 8:00 am; Testosterone is lowest at approximately 8:00 pm. Have blood drawn for testosterone test at/or near 8: 00 am for your circadian cycle.
- Shift workers who adapted to this shift work and obtained restful sleep during the day had normal testosterone levels---Journal of Clinical Endocrinology and Metabolism, 2005
- Shift workers who were dissatisfied with their jobs had low testosterone; but, when they got quality sleep--whether at night or day, they became more satisfied with their work place, especially as their testosterone levels rose, via better sleep cycles
- In some cases, testosterone has been shown to cause sleep apnea. The mechanics of how this comes to be is not resolved yet. But one thing stands clear: Administering high-dose testosterone worsened sleep apnea, in elderly men, having sleep dysfunction and breathing difficulties (or patterns) when asleep.
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If the quality of sleep goes down, Testosterone goes down. Breathing disorders during repose affect the quality of sleep one gets. There are numerous breathing disorders. Here, we will discuss only sleep apnea; referencing your question.
Sleep Apnea : What is it? |
Sleep Apnea happens when one sleeps in which there is a cessation of airflow for 20 to 30 seconds. The least it occurs is for ten seconds. This occurs a number of times a night. Involved with Sleep Apnea (SA) are snoring, arousals from sleep, and hypoxia--"a deficiency of oxygen in body tissues..."---Oxford Dictionary of Biology: Fifth Edition; 2004. You can see that lack of oxygenation for various periods throughout the night when your body tends to build some 23-odd hormones between 2 to 4 AM can result in your operating the next day on the reduced previous day's hormones if possible, provided they haven't been degraded by the liver. Namely, you are going to be tired, irritable, grouchy, foggy-headed, and a host of other problems associated with poor quality sleep. Incidently, marijuana causes a break in forming the required hormones between 2-4 am.Soldiers who have been sleep deprived, under stress, and rigorous physical training show declines in testosterone, DHEA, and androsten(e)dione in the range of 70 to 90 percent.
Another study demonstrated that cadets from Norway undergoing similar to the soldiers showed they no longer had the aggressiveness and/or initiative to fight, and had less beard growth---all signs of hypogonadism (inadequate gonadal function, such as deficiencies in sex cells--sperm/ova--and decreased secretion of gonadal hormones).---References:
Opstad PK, Aakvaag A. 'Decreased serum levels of oestradiol, testosterone and prolactin during
prolonged physical strain and sleep deprivation and the influence of a high calorie diet.' Eur J Appl Physiol Occup Physiol, 1982; 49 (3): 343-8; Opstad PK, 'Androgenic hormones during prolonged physical stress, sleep and energy deficiency.' J Clin Endocrinol Metab, 1992, May; 74(5): 1176-83.
PoliceMag.com, December 2006, page 72, writes:"...in many sleep deprivation studies, the first two symptoms are irritability and poor decision-making."
A thirty-year law enforcement veteran, Neal Rawls, writes in, Be Alert Be Aware Have A Plan: "A soldier out on patrol or in combat is in a high state of alert. That state's exhausting and stressful." |
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