blue light and sleep
PSA: Power down before bed.
It's time to start thinking about light as a powerful medicine -- capable of providing tremendous benefit when used correctly, but requiring care and education in that use. Like a potent drug, it's absolutely necessary that we stay educated and aware of all of light's possible effects on our brains and our bodies.
Some form of postpartum depression (PPD) affects nearly one in four mothers -- roughly 950,000 women. Likely brought on by the hurricane of hormones that moves its way through a woman's body during pregnancy, PPD could also be trigged by major life trauma or some blip in genetic makeup -- any number of factors, really. One that researchers are finding more and more common: blue light.
The study ran for two weeks and included 12 participants who read on an iPad for four hours before bed for five days straight
I expect we will see a great deal more investigation into the effects of blue wavelength light on sleep and health. But you don't need special goggles or eye lens implants to protect your circadian rhythms and your sleep from the negative effects of artificial light.
Your brain is very sensitive to light. Based on light wavelength exposure, the brain's pineal gland will decrease or increase melatonin production. That's what sets your circadian rhythm and influences all normal bodily cycles throughout the day and night.