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While doing a podcast interview a couple of weeks ago, when I said my age, the interviewer complimented me by saying that what I said is not what they would’ve guessed. When they asked what the secret was, the first thing that came out of my mouth was, “Oh, I’m gonna take me a nap.”

I adore sleep. I’ve said before that it’s like what Six Flags is to some people. And really, it’s just a plus that there are so many health benefits from getting plenty of rest. Beauty-wise, science does reveal that getting no less than seven hours a night can slow down signs of aging. Know what else? There are some direct things that sleep — and the lack thereof — can do to your immunity as well.


And so, since this is the time of year when catching a cold (and/or the flu) is common, let’s talk about the impact that sleep (and again, a lack thereof) has on your immune system. That way, you can remain as healthy as possible during the fall and winter seasons.

1. Less Sleep Means More Colds

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Like I stated in the intro, I’m pretty sure you’ve heard somewhere that the fall and winter are the seasons when people are most susceptible to catching a cold or coming down with the flu. And that’s exactly why I thought I would start this all off by sharing the fact that some studies reveal that if you get less than six hours of sleep, on a consistent basis, you end up making yourself more vulnerable to coming down with both. In fact, some research says that only 18 percent of people who get six-plus hours of rest caught a cold while almost 40 percent who got less than that did.

The logic behind it all is sleep gives your body time to build up the proteins and cells (like cytokines and T-cells) that you need to fight off certain viruses. So, if nothing bothers you more than having a stuffy nose or stubborn cough when it’s cold outside, getting more sleep is one way to prevent that from happening to you.

2. Less Sleep Means More Allergy Symptoms

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At the end of the day, an allergy is basically what transpires whenever your immune system “overreacts” to something that other people’s systems do not. And since sleep is what helps to keep your immune system nice and strong — well, I’m sure you get how less allergy-related symptoms and more sleep go hand in hand. Also, since sleep helps to decrease bodily inflammation (more on that in a bit) and inflammation can also intensify allergy symptoms, that’s just one more reason to get as much shut-eye as possible.

3. Less Sleep Means Potential Diabetes and Heart Disease

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Did you know that in 2024, Black women were diagnosed with diabetes 24 percent more than any other adult demographic. Also, it continues to be a reality that heart disease is the leading cause of death for Black women. These two sobering statistics alone should be enough of an incentive to do whatever you can to keep the risk of diabetes and heart disease way down.

One way to do that is by getting more sleep. Aside from the fact that sleep strengthens your immune system to where it is easier for you to fight off illness and diseases, sleep can keep your blood sugar levels in a healthy space; plus, when it comes to your heart, it gives it, along with your arteries and blood vessels a break.

4. Less Sleep Means Less Time for Your Body to Push “Reset”

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If you really stopped to consider all that your body goes through during the day (you can read some about that here), you definitely would respect it enough to do your best to thank it by giving it no less than six hours of sleep, each and every night. Sleep is what helps to slow your brain and body down so they are able to “refuel” for the next day. After all, how can your body prevent you from getting sick if your immune system is too worn out to fight ailments off? Exactly.

5. More Sleep Helps You to Fight Off Infections

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Speaking of, in order for your body to fight off infections, there are certain cells and antibodies within you that need to be healthy and strong — one way that they get and stay that way is by you getting a good amount of sleep. For instance, remember when I touched on cytokines earlier? Well, the same way that they help to prevent colds, they also help to prevent infections too. And since sleep lowers your cortisol (stress) levels, rest gives your body the time and space to build up an army that can fight off free radicals and other health-related challenges while you are awake.

6. More Sleep Lowers Bodily Inflammation

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Whenever a health-related issue is mentioned on this platform, inflammation is something that is mentioned quite a bit. Probably the easiest way to explain inflammation is it’s how your body responds/reacts whenever something is happening to your body that shouldn’t be, whether it’s an illness, an injury, a germ or something that you may be allergic to.

If you happen to have chronic inflammation, some symptoms that are associated with that include fatigue, stiff joints, skin rashes, weight gain and moodiness.

The interesting thing about all of this is if you aren’t getting enough rest, you could be triggering inflammation in your body. That’s because studies reveal that a lack of sleep can elevate molecules that are associated with inflammation. So, if you don’t want inflammation to increase within your system, you should definitely catch more zzz’s.

7. More Sleep Regulates Hormones

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When it comes to hormones like serotonin, estrogen and cortisol, believe it or not, they play a role in how your immune system acts and overreacts. That’s because, if your hormones are out of balance, that can cause your immune system to work harder than it actually should and that can make you more vulnerable to sickness. One way to keep your hormones leveled out? SLEEP.

That’s because sleep gives your body the opportunity to rest, repair and restore your hormone levels. On the other hand, when you are sleep deprived, that can put/keep your hormones on the ultimate roller coaster ride. #notgood

8. More Sleep Strengthens Vaccines

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If you’re someone who is good for getting some sort of vaccine around this time of the year, make sure that you rest up before and after getting your shots. Not only does adequate rest before a vaccination help your immune system to be better receptive to your shots but sleep also helps your body to build up enough antibodies to make your vaccinations effective after getting them. Because if you’re gonna get pricked, shouldn’t it be worth it? My thoughts exactly.

Get some freakin’ sleep! Your immune system depends on it.

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Featured image by Shutterstock

 

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