JUST IN: Do You Know That Not Sleeping Enough Can Lead To Oxidative Stress In Women, Study Shows

Sometimes it seems like there are a lot of differing opinions among health professionals. Is coconut oil good or bad? Should you do more cardio or strength training? Those answers can be pretty nuanced and vary based on the person asking them. But the one thing pretty much every health professional can agree on is that we all need to get enough quality sleep each night.

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Obviously, that’s easier said than done, especially for women. Fluctuating hormone levels,long work hours, caring for babies or aging parents, and stress are all just a few factors that impact our shut-eye over the years. And even if you feel like sleeping less isn’t affecting you, it likely is starting to take a toll on you internally—especially on your heart health.

According to a study published in the journal Scientific Reports, sleeping 90 minutes less than your norm every night can lead to signs of oxidative stress in the blood vessels of 30- and 40-year-old women in as few as six weeks.

Here’s what you need to know.

Researchers of this study were particularly interested in looking at the impact of mild sleep restriction measures of oxidative stress in endothelial cells—the cells that line blood vessels.

Why? Well, blood vessels comprise the body’s vascular system, which is responsible for delivering oxygen-rich blood to every part of the body and sweeping away waste products. While the heart provides the force needed for blood to move throughout the body, the health of individual blood vessels also significantly impacts the brain.

Blood vessels are susceptible to damaging oxidative stress (aka an imbalance of beneficial antioxidants to harmful free radicals). This is a major risk factor for heart disease—the leading cause of death in women.

By understanding how a common experience many women in their 30s and 40s have (periods of not sleeping enough) on a common risk factor of the number one killer of women, we can take a more targeted approach to reducing that risk.

So a total of 35 women (who, on average, were 36 years old) who regularly slept seven to nine hours a night completed this two-part study. For six weeks, they followed their regular sleep schedule. For another six weeks, they had their bedtime delayed by an hour and a half (bringing their sleep time to about six hours a night).

Everyone wore a tracker on their wrist to monitor their sleep. At the end of each six-week period, researchers also collected endothelial cells—looking for indicators of oxidative stress.

Sleep restriction led to higher levels of oxidative stress

By the end of the study, it was clear that sleeping less had a double-whammy effect on blood vessel health by:

Promoting signs of oxidative stress and damage
Impairing the antioxidant response meant to counter that damage

This combination of inflamed and dysfunctional cells and a lack of quality control from antioxidants is the first step in cardiovascular disease.

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