Beauty from Japan. From our world to yours.
Sleep Debt: What Is It
How Can You Repay It?
If you’re not getting enough sleep, it will show on your face. Here’s how to refresh your skin and banish the aging effects of sleep debt.
Story by Sarah Lillywhite
Let’s talk about sleep. You might think the odd late night or early morning here and there will have little effect – after all, with our busy lifestyles and 24/7 connectivity, who can avoid losing some zzzs? However, regularly missing out on those vital eight hours or suffering from insomnia means building up chronic sleep debt, which in turn has very real consequences for your skin.
WHAT IS SLEEP DEBT?
Experts say we should be getting seven to nine hours of sleep a night, but more than 60% of women are actually getting much less. As your levels of missed sleep – or sleep debt – mount, you may experience fatigue and memory loss, among other more serious health concerns.
HOW DOES IT AFFECT YOUR SKIN?
Sleep is a major factor in skin aging. SHISEIDO sleep researcher Yoko Gozu says: ‘It has become clearer that it is extremely important for the skin to have a proper sleep routine: that is, a regular sleep-wake rhythm.’ SHISEIDO sleep researchers Yuki Ogura and Masato Iino have also found that lack of sleep can cause collagen glycation, making it a key contributor to wrinkles.
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WHAT IS COLLAGEN
Lack of sleep, coupled with stress, has been found to raise the levels of certain sugars in our bodies, onto which collagen binds as it breaks down. Masato Iino explains: ‘Once glycated, collagen cannot maintain its correct three-dimensional network structure and loses its original spring-like function, resulting in the loss of vital firmness and elasticity. This eventually causes wrinkles.’