Published on November 17, 2022 at 5:09 p.m.
This is a phenomenon that we unfortunately know all too well. The day after a restless night, our reflection in the mirror is not always very flattering. The face is dull, marked, puffy… In short, the skin is not in top shape. In the dock? Lack of sleep. To understand why the effects of fatigue also impact the quality of the skin, it is necessary to analyze the functioning of the latter.
Tell me what time it is and I’ll tell you what your skin does
Throughout the day, the skin has a (very) busy schedule. “The skin performs many functions daily, some of which follow a daily rhythm”, says Dr Nadine Pomarède, dermatologist at the DermoMedicalCenter. In the morning, for example, the activities of the skin are concentrated on the protection and proper functioning of the skin barrier in order to protect us from external aggressions. Do you shine more at the end of the morning than at the beginning? It’s normal. “Sebum secretion peaks at midday, which explains the shine of the T-zone on the oily skin “says our expert. At the end of the day, the cells regenerate less, which leads to a loss of radiance and vitality.
What does the skin do at night?
“At night, cell regeneration functions are activated as well as microcirculation to provide the nutrients necessary for cell division and eliminate toxins,” Dr. Pomarède tells us. A great program that brings us hydration, new and healthy skin when we wake up. Yes, but now, when sleep is restless, the skin cannot properly regenerate. “Lack of sleep is stressful for the body and can disrupt cellular rhythms. It also causes the skin to age prematurely. And this can be seen on the skin: the complexion is duller, dark circles marked, the skin seems less plumped,” explains the dermatologist.
Wrinkles, dull complexion, dark circles… The explosive cocktail of a lack of sleep
To understand the impact of sleep on the skin, Sarah Chalmers, journalist for the ” DailyMail agreed to take part in a study organized by the London Sleep School. For a week, the one who was used to her 8 hours of sleep a day drastically changed her routine. The first night, Sarah Chalmers slept only 4 hours. The rest of the week, his nights only lasted 6 hours. Very quickly, the effects of the lack of sleep were felt. “I look much older. My eyes are dark circles, my skin is dull and I have pores so large that I can see them from afar. To top it off, a few spots are starting to develop on my chin,” she wrote in her review. Asked by the journalist, dermatologist Anita Sturnham confirms this phenomenon: “When we don’t sleep enough, the body secretes more cortisol, which degrades the skin’s collagen and affects its elasticity while promoting the production of sebum, with the key shiny skin and Pores “.
What routine should you adopt to combat the effects of lack of sleep on the skin?
“We often say that you have to let the skin ”breathe”, and don’t wear anything at night. What is especially important is to thoroughly cleanse the skin with a suitable product that removes makeup residue, impurities and sebum without stripping it,” advises our expert. The idea? Leave your skin clean, ready to receive care. To stimulate cell renewal, we turn to exfoliating ingredients like AHA or PHA fruit acids. To prevent skin aging, opt for antioxidants such as vitamin A, C or polyphenols. Finally, to strengthen the skin barrier, we focus on hyaluronic acid, ceramides or essential fatty acids.