It is impacted by three main factors:

• Light: probably the most significant pace setter of the circadian rhythm. Staring into a bright light for 30 minutes or so can often reset your circadian rhythm regardless of what time of day it is.
• The time of day

The light triad is not simply the opposite of the dark triad. There is a little bit of light and dark in each of us.

A study revealed that the average person is leaning more toward the light triad than the dark in their everyday patterns of thoughts, behaviors, an...

While we are starting to pay attention to how important sleep is, the need for dark is still mostly ignored.

Being exposed to regular patterns of light and dark regulates our circadian rhythm. Disruption of this rhythm may increase the risk of developing some health conditions includin...