Posted on: September 9, 2015 at 10:30 pm
Last updated: September 15, 2017 at 2:24 pm

This awesome post was written by Alina Islam, a wonderful Certified Nutritional Practitioner from Toronto, Canada. She is a writer, speaker and nutritional consultant. You can read more of her work at or follow her on Facebook, Instagram, and Twitter.

What’s the last thing you look at when you go to bed and the first thing you look at when you wake up? If you thought about your smartphone instead of the face of your lover or looking outside the bedroom window, we need to have a talk.


I think at this point we all understand that our addiction to screens can have a damaging effect when it comes to a social context, by disconnecting us from the present and isolating us from others around us. However, I am still surprised that many of my clients do not connect the dots between too much screen time and having trouble sleeping. And that’s probably due to a lack of education and awareness around the issue.

So here it is: the two main ways that excessive screen time is preventing us from falling asleep is due to 1) continuous cortisol production, and b) not enough melatonin production.

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Continuous Cortisol Production

This is a stress hormone that is secreted by the adrenal glands, which sit atop our kidneys. Cortisol production is supposed to be highest in the morning and then drop off at night, in order to allow the body to keep a regular sleeping pattern. However, since cortisol responds to long-term stressors, such as constantly being “switched on” to answer emails on our phone or laptop, it can remain elevated well into the evening, and around our bedtime. This causes us to lie awake in bed staring at the ceiling, tossing and turning and perhaps waking up in the middle of the night, especially between the hours of 2-4am.

Inadequate Melatonin Production

This hormone allows your body to distinguish between day at night, making you feel tired when it gets dark in the room and allowing you to wake up when there’s light. It is produced in the absence of light, which means that darkness is what signals melatonin production! Unfortunately, instead of following our circadian rhythm, most of us lie in bed glued to our phone, laptop or TV screen, suppressing the signal for melatonin production.


What’s more, cortisol and melatonin have an antagonistic relationship, meaning that they fight for dominance. If cortisol levels continue to stay high throughout the day, it will be difficult for the pineal gland to secrete adequate levels of melatonin as the day progresses towards sunset.

Here are some simple tips you can use to guarantee more restful sleep and energy the next day:

  • Buy an eyemask to block out any light in your bedroom when you go to bed
  • Create a new nighttime routine, one that does NOT involve a screen e.g. reading a book, listening to music, performing light yoga, having a hot bath
  • If you MUST continue to use a screen for work, install Flux, an app that continuously adjusts the brightness and tint of your laptop screen based on the time of day. For example, the screen is brighter during the day, but starts to dim and form a more yellowish tint after sunset.
  • If you’re still struggling despite the suggestions above, purchase a melatonin supplement from the health food store. Liquid acts fastest, and you can start off with the lowest dose at 1mg for a few weeks to see how your body responds.

Still struggling with energy throughout the day? Sign up for Alina’s online coaching program, the 6-Week Energy Bootcamp – for coffee lovers & corporate burnouts. Enrol before September 10th for only $40/week! What are you waiting for?


Alina Islam
Certified Nutritional Practitioner, CNP
"Alina Islam is a Certified Nutritional Practitioner (CNP) and in-house nutritionist at The Hearty Soul in Toronto, Canada. Through her relatable approach, Alina loves to educate and empower her clients to create long-lasting, sustainable change using food, lifestyle and natural supplements as her toolkit. Click here to claim her free eBook, 'The Beginner's Guide to Meal Prep' to lose up to 10 pounds, skyrocket your energy and take control of your health."

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