Lights trespassing in our bedrooms can disrupt sleep patterns, reducing the quality of our sleep. This goes for animals as well!
Certain wavelengths of light trigger a response in our brains to either stay awake or go to sleep. This is why cell phones have a “night shift” mode. Closer to bedtime, consider “warm white” or more orange sources of light, and refraining from cellphone, tablet, computer and television use.
Research is being conducted to discover the impact on our biological clocks.