How your cell phone is destroying your sleep | Blue light sleep effects

We all read on our cell phones at night in bed, but do we really know how this can affect our sleep. If you’re having trouble sleeping, check it out to learn more.

At night, artificial light can throw our body’s clock out of sync, but not all colours have the same effect on us. In particular, blue wavelengths are the most disruptive to our bodies at night. Darkness is nature’s cue to the body that it’s time to start winding down for sleep, which tells the brain to start secreting the hormone ‘melatonin’. The problem specifically with blue wavelengths of light at night is that they are the most disruptive in suppressing the production of melatonin, which makes it harder to fall asleep and even be able to achieve good quality sleep once you doze off. This episode of Ratalyst provides some strategies for improving your night time routine to have a positive change to your health and the way your body functions.


DW Documentaries | Light Pollution – The Disappearing Darkness


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Less than 100 years ago, everyone could look up and see a spectacular starry night sky. Now, millions of children across the globe will never experience the Milky Way where they live. The increased and widespread use of artificial light at night is not only impairing our view of the universe, it is adversely affecting our environment, our safety, our energy consumption and our health.


Losing the Dark

Starry skies are a vanishing treasure because light pollution is washing away our view of the cosmos. It not only threatens astronomy, it disrupts wildlife, and affects human health. The yellow glows over cities and towns — seen so clearly from space — are testament to the billions spent in wasted energy from lighting up the sky.


Where Are the Stars? See How Light Pollution Affects Night Skies | Short Film Show case

Of the many ways Earth is polluted, light pollution may be the least talked about. It’s not an illusion; astronomers measure it from one to nine on the Bortle scale, and earlier this year, one study suggested that light pollution may be causing spring to come earlier. This short film, shot mainly in California by Sriram Murali, goes through all the levels of the scale, showing how the view of the cosmos gets better in less light-polluted areas.