Twilight indoors causes sleep and mood problems.
Because we are in twilight the whole day, our biological clock starts running behind the real time. As a result, when we need energy we lack it… and when we want to sleep, sleep won’t come or is not deep enough. Not getting enough daylight during the day can even contribute to insomnia and depression.
Because staying in poorly lit environments, when you need the power and spectrum of daylight, prevents your brain from getting the right signals at the right time. This is why you feel sleepy during the day and can't sleep at night.
If you want to bring good light in your life, watch also the other steps to a healthier and happier life here: Try | Home | Good Light Group | Foundation
Light supports us in everything we do. Good light means the right light at the right time. It has a great positive impact on our experience of energy, sleep, happiness and health.