How Your Circadian Rhythm Affects Your Immune System

There’s more to staying healthy than eating well and exercising.

Wednesday, Jul 08th, 2020

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Now’s the time when staying healthy and keeping your body in top shape is essential. While many people understand the importance of eating well and exercising, did you also know that your circadian rhythm can play a critical role in the strength of your immune system? In this post, we break down why that is.

What is your circadian rhythm?

Your circadian rhythm is your daily internal cycle that functions on a 24 hour clock. This cycle affects your physical, mental, and behavioral functions and can influence your sleep-wake cycle, hormones, digestion, and more.

The best way to keep your circadian rhythm in sync is to stick to a routine and go to bed and wake up at the same time each day. 

How does your circadian rhythm impact your immune system?

Your circadian rhythm impacts a lot of different functions within the body, such as your heart and lungs, and keeps them functioning as they should. When your circadian rhythm gets out of whack, the organs that rely on the circadian rhythm become compromised, which in turn can weaken your immune system.

Because your circadian rhythm is tied to sleep, a disrupted circadian rhythm can interrupt your quality of sleep. Your sleep affects your immune system, so the less sleep you get or the lower quality your sleep is, the more compromised your immune system can get. You’ll be at a higher risk for contracting viruses and other illnesses.

How can you regulate your circadian rhythm to improve your immune system?

Your circadian rhythm is affected by light and dark, so the first step to strengthening your immune system is to make sure you’re exposing yourself to the right light at the right time. This means bright light or sunlight in the morning and during the day to keep you alert, and more dim light in the evening to help you relax.

To help maintain this exposure to light, Brilli’s Charge Up bulbs are ideal for rooms where there’s not a lot of sunlight. They also work well as task lights to enhance your workspace and keep you focused. For rooms where you spend a lot of time in the evening, Brilli’s Wind Down bulbs can be used to imitate the light in the evening. This can help your body unwind, relax, and prepare for sleep.

Additionally, be sure to avoid blue light at night which can inhibit the release of melatonin and other hormones that cause your body to feel sleepy. Besides being aware of your light exposure, you should also aim to exercise daily and eat a balanced diet full of fruits and vegetables to keep your immune system strong.