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HGH and Sleep – How They Affect Each Other

It has often been said that people require eight hours of sleep each night, and perhaps the most important reason for that is the production of human growth hormone. The connection between HGH and sleep is clear – each one needs the other for proper performance.

The body needs sleep in order to secrete enough growth hormone for the day’s activities, and falling into an abundant deep sleep requires a plentiful amount of HGH in the system throughout the day.

Human growth hormone is undoubtedly one of the most essential of all chemical messengers in the body. It plays a part in how well the metabolism converts food into energy, how the body regenerates new cells, immunity, brain and heart functions, libido, and so much more.

Research conducted at the University of Chicago found that when men transition from early adulthood into their mid-life years, deep sleep decreases and less HGH is produced. This effect in reversal can be seen during puberty when teenagers seem to have a need to sleep all day. Their bodies require an abundance of growth hormone to fuel the maturation process, and excess sleep helps to enable this production.

The correlation between sleep and HGH is apparent – sleep does the body good in many ways, but especially to fuel the production of human growth hormone.

How Sleep Improves HGH Secretion

During periods of sleep, when the body is experiencing the deep, slow-wave cycle, growth hormone is secreted by the anterior somatotropic cells in the pituitary gland. Nearly half of the day’s production of HGH comes during this sleep cycle – thus, the HGH-sleep connection.

If interrupted by periods of waking, shortened by insomnia, or interfered with by restlessness, the body will not be able to fulfill its secretion needs of HGH. This will already produce a deficit for the individual to deal with during the day.

The daytime release of HGH is stimulated by high-intensity exercise. Nutrition and stress can also play a role in human growth hormone secretion, but exercise is typically the biggest mitigating factor for the pulsatile bursts of HGH. Lack of sleep at night will already have a person feeling tired the next day, and typically not in the mood for exercise. As daytime and nighttime production of growth hormone goes down, an increase in the secretion of cortisol goes up.

Cortisol is the antithesis of HGH. It breaks down collagen, the protein that helps to keep skin smooth. Whereas human growth hormone stimulates the regenerative cellular process that improves collagen, cortisol is its enemy. Cortisol also stimulates the appetite to consume more food to increase the energy that lack of HGH and proper metabolism has decreased. More food intake for a metabolism that is already not working properly means an increase in fat to store away.

Higher cortisol levels in the evening keep a person from going into a state of relaxation – the precursor to being able to fall asleep. This reduces sleep time, deep, slow-wave sleep, and HGH secretion as a result.

How HGH Therapy Improves Sleep

Sleep and Growth Hormone

Understanding the HGH and sleep connection makes it easy to see how human growth hormone therapy can play a role in improving sleep. We have seen how low HGH levels stimulate the secretion of cortisol. This stress hormone interferes with proper sleep patterns. By raising the level of HGH in the body through the use of human growth hormone therapy, the level of cortisol will decrease.

As cortisol levels go down in the evening, the body will find it easier to drift off into a deep sleep. This, in turn, produces an ideal atmosphere for the pituitary gland to improve functions and HGH secretions. Higher levels of HGH in the body will make it easier to fall into a deep sleep. This allows the body a chance to regenerate and rejuvenate from the day’s activities.

The thought of an HGH sleep aid is not yet a reality, as such in regards to a pill that can be taken. HGH is only available as an injectable and is not prescribed solely for the use of improving sleep. Only those adults with a verifiable human growth hormone deficiency, as shown by blood analysis, are qualified to receive this bioidentical medication. Symptoms of HGH deficiency must also be present.

If getting eight hours of sleep each night seems impossible, and other symptoms of growth hormone decline, such as lack of energy, decreasing sexual desire, low bone density, excess belly fat, memory loss, frequent illness, and loss of lean body mass are present, then it is time to contact a hormone replacement therapy specialist to find out if increasing sleep with HGH therapy can help restore balance to the body.

National HRT is a national hormone replacement therapy clinic for men and women. Free consultations are available to learn more about HGH and sleep, as well as other options in hormone replacement for adults.


  1. Sleep Foundation
  4. Hormone Replacement Therapy Improves Sleep, Sexuality And Joint Pain In Older Women Date:August 23, 2008 Source:University of Adelaide
  5. science alert
  6. The Impact of Sleep and Circadian Disturbance on Hormones and Metabolism Tae Won Kim, Jong-Hyun Jeong, and Seung-Chul Hong 31 December 2014
  7. Hormone Replacement Therapy and Sleep-disordered Breathing Eyal Shahar , Susan Redline , Terry Young , Lori L. Boland , Carol M. Baldwin , F. Javier Nieto , George T. O’Connor , David M. Rapoport , John A. Robbins
  8. Sleep, Rhythms, and the Endocrine Brain: Influence of Sex and Gonadal Hormones Jessica A. Mong, Fiona C. Baker, Megan M. Mahoney, Ketema N. Paul, Michael D. Schwartz, Kazue Semba and Rae Silver Journal of Neuroscience 9 November 2011, 31 (45) 16107-16116;
  10. Healio EndocrineToday
  11. The Conversation
  12. mbg
  13. Natural Fertility Info
  14. Hormonediva
  15. Sleep-disordered breathing and hormones T. Saaresranta, O. Polo
  16. dovemed

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