I've looked for this on the Internet and I'm sure the answer is out there,but I just don't know where. Whenever I get up before I'm supposed to get up,really early in the morning,it is sometimes light out. If I look at the light then,I can't get back to sleep and get the amount I'm supposed to get. I wear dark glasses for this reason. Also,and it's related, my alarm clock display is red and I have a transformer with a green light. I have two things each shining a different color of light while I sleep,and I always think,"Should I have bought the alarm clock with the blue display?".
These two situations,the one with dark glasses and the one with the alarm clock, got me thinking about lights and brains. It got me thinking about how seeing light makes people wake up. I was wondering whether there is a specific wavelength of light that wakes people,or if every light wavelength has a different degree to which it is able to wake people. Maybe they all wake people up to the same degree.How does this light-wake up thing work? I would like to know anything anybody knows about how this works. How does this work? Thank you.