Our hormones have a pretty dramatic response to blue light… (for a good reason)
Blue light is part of the visible light spectrum. We are naturally exposed to blue light from the sun (more on that in a minute). But in today’s world, the other largest source of blue light exposure is from our screens and artificial lighting. Think: computers, iPads, phones, LED TV’s, LED lights, and fluorescent lights
Our bodies are designed to respond to light! At our most animalistic level, we have an internal body clock that responds to light exposure to regulate things like our hunger, sleep/wake cycles, digestive health and more.
This is where the sun’s blue light exposure comes in! The blue light we’re meant to get from the sun tells our brains what time of day it is and therefor which hormones to pump out.
Morning light? Let’s fire up things like digestion and cortisol
Sun going down? Time to head into a rest state, produce melatonin, and wind down for sleep
So what is impacted when we’re also getting exposure to lots of artificial sources of blue light throughout our days?
Essentially, our eyes are not able to communicate the correct information to our brains. This light exposure, especially into the “wind-down” parts of the day, can encourage our bodies to continue producing hormones such as cortisol (stress hormone) and ghrelin (hunger hormone) and can suppress melatonin (sleepy hormone) production.
Blue light exposure can throw off our sleep/ wake cycles, which in turn can lead to things like weight gain, insulin resistance, altered metabolic function, and fertility issues…
Melatonin deficiency and irregular circadian rhythm can be connected to things like:
Obviously it can be difficult to limit artificial blue light exposure completely, but there are some things we can do!
👓 Look into blue light blocking glasses (especially at night)
🍊 Use an orange filter on your screens (I always have the “Night Shift” setting on on my phone and laptop)
📱 Limit screen time for one hour min prior to sleep
LET’S HAVE HEALTHY, HAPPY HORMONES! 👑🔥💫💖
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Calee Shea is a Holistic Health Practioner based in Atlanta, Georgia. She is your go-to gal for all things periods, vaginal health, and sex.