Lack of sleep has been recognized to be associated with an increased risk of many chronic diseases such as hypertension, diabetes, obesity, cardiovascular disease, depression and even cancer. However, scientists should add the skin to the list of organs affected by poor sleep.
When it comes to anti-aging therapy or prevention of aging, rarely does anyone think about their sleep. On estet-portal.com, read what does "good sleep" mean, as well as the mechanisms by which poor sleep quality can cause skin aging.
What do human circadian rhythms affect
Sleep is vital for the growth and renewal of many physiological systems in the body, and is strictly controlled by the circadian system. The circadian system is a 24-hour fluctuation of the body in the rhythmic expression of physiological functions. It is controlled by the "internal clock" located in the suprachiasmatic nucleus of the hypothalamus.
This clock, in response to signals from the environment, regulates a person's sleep pattern, body temperature, cardiac activity, hormone secretion, oxygen consumption and metabolic rate. It is also known that the "internal clock" play a role in protecting the body from systemic inflammation and DNA damage.
Recently, the "internal clock" has been investigated; many mammals, and it has been found that the genes responsible for circadian rhythms are present in all nucleated cells in our body.
The skin, being the largest organ of the body, also has cycles, it receives information about time from the "master clock"; in the suprachiasmatic nucleus through a combination of signals from the sympathetic nervous system and secreted hormones.
The skin is a physiological barrier between the body and the external environment, performing the function of maintaining homeostasis despite external changes such as humidity, temperature and ultraviolet radiation, as well as internal changes such as stress or hormone levels.
Melatonin – the hormone of sound sleep and the guarantee of youth
How the circadian system of the human skin works
Evidence for the existence of circadian skin rhythms was presented in a 2000 study. It was found that oscillators are present not only in fibroblasts, but also in epidermal keratinocytes and melanocytes, and coordinate each other to perform skin functions in a timely manner.
It is likely that this multi-oscillatory system is vital in fine-tuning the physiology of the skin in response to external and internal stimuli and therefore allowing the skin to perform its role effectively.
Furthermore, since the skin is an active endocrine tissue, it is hypothesized that it can generate humoral signals to synchronize the rhythms of the rest of the body.
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Why is it important for the beauty industry doctor to know about skin circadian rhythms
Knowing that the skin has its own circadian rhythm allows us to understand a little more the complex behavior of the skin and its role as a master organ with fine regulation and systemic action.
More research is needed to investigate the link between poor sleep quality and skin dysfunction and premature aging.
These studies give aesthetic medicine professionals the understanding that, in addition to aesthetic correction, it is important to give the patient recommendations regarding his lifestyle. Good sleep can significantly improve skin quality and slow down aging.
You may also be interested in the article: The effect of smoking on skin quality: the possibilities of a beautician
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