What happened to the old incandescent bulbs ?
Oh yea !
Our government had phased it out for nothing less than our own benefit…right ?
How some light can disrupt circadian rhythm
Fluorescent, CFL and normal LED light bulbs emit a spectrum of light with a high concentration of blue wavelengths, which tells the brain to wake up. Similarly, computer and electronic device screens also emit concentrated blue wavelength light.
When exposure to blue-enriched light occurs just prior to bedtime, it can wake you up and may disrupt your sleep cycle. Other rhythms can also be affected by the change in light, including cognition, metabolism, and mood.