Our cognitive abilities don’t remain static over the course of a day. During the 16 or so hours we’re awake, they change—often in a regular, foreseeable manner. We are smarter, faster and more creative in some parts of the day than others.

With knowledge of our internal body clock, and we can harness the power of bright light to be healthier and more productive.

What is Circadian Rhythm?



It is an internal clock in our bodies that makes us alert during the day and sleepy at night. 

With exquisite precision, our circadian rhythm regulates critical functions such as behavior, hormone levels, sleep, body temperature and metabolism. 

Bright daylight is an important influencer on our body. Too little light in the morning will cause us to feel tired during the day. Too much light at night will make us unable to fall asleep.

Our physical and mental health can be affected when our internal body clock does not match our external environment or lifestyle. This is why we feel sluggish when we travel across time zones and experience jet lag, or during long dark winter days. 

Our modern way of life, where we sit inside our dimly lit office during the day and watch Netflix on brightly lit devices at night is disrupting our bodies’ natural clock. This causes us to feel chronically tired, moody and unmotivated.