21 10, 2017

Sleep better with natural light – how blue light and sleep are linked!


Exposure to natural light is a critical ingredient for a good night’s sleep - but most people don't understand that we need BOTH bright light during the day, AND biological 'darkness' to sleep well at night.  Blue light and sleep are fundamentally tied together - our bodies depend [...]

Sleep better with natural light – how blue light and sleep are linked!2018-06-24T14:44:01+00:00
3 10, 2017

Our internal clock governs our health and wellness


Humans, plants and animals have internal clocks which are synchronized by the daily cycle of light and dark.  In October 2017 the Nobel Prize in Medicine was awarded to three researchers for their work on the underlying mechanisms which govern the internal clock of living organisms.   Sir Paul [...]

Our internal clock governs our health and wellness2017-10-03T14:43:18+00:00
22 09, 2017

Natural light is fundamentally different than artificial light


Natural light is fundamentally different than the artificial light sources which we use in our homes, offices and schools. (1) Natural light is full spectrum, which means it contains all the colors of the rainbow, as well as wavelengths (colors) that we cannot see (infra-red and ultra violet). [...]

Natural light is fundamentally different than artificial light2017-09-22T17:20:00+00:00
25 08, 2017

solar eclipse observations


The August 2017 solar eclipse offered an incredible opportunity to witness how natural light colors our world.  For those outside the path of totality the eclipse was almost imperceptible as our eyes automatically adjust for the changing intensity of the sun = 5% of the sun is still [...]

solar eclipse observations2017-08-25T13:55:53+00:00
21 07, 2017

how much natural light do we need (for our health)?


Our bodies rely on the daily cycle of natural light from bright and blue during the day to soft and warm in the evenings (and then darkness) to synchronize our circadian rhythms, and thereby regulate our health and wellness.   Insufficient light during the day leaves us feeling flat.  [...]

how much natural light do we need (for our health)?2017-07-22T13:51:36+00:00
2 07, 2017

natural light improves student performance


The daily cycles of natural light profoundly impact the health, wellness and academic performance of children.  Exposure to bright blue light during the day to boosts mood, alertness, concentration and energy levels.  Studies show that exposure to natural light improves student test scores, attendance and behavior.  Unfortunately artificial [...]

natural light improves student performance2017-07-02T15:11:03+00:00
26 06, 2017

natural light for infants (and caregivers)


Natural light underpins the health and wellness of infants and their caregivers.  As any new parent knows, babies are born without a well-developed sense of night and day, and their internal body-clocks need external cues to help establish their sleep wake/cycle.  Infants depend upon exposure to the daily [...]

natural light for infants (and caregivers)2017-06-26T15:08:43+00:00
19 06, 2017

using light at night safely


Our health and wellness depends upon the daily cycles of natural light, but we don't have to live in darkness after sunset - we just have to be smart about how we use artificial light.  To put it simply: after dark we should avoid bright blue light which [...]

using light at night safely2017-06-20T23:41:07+00:00
17 06, 2017

how our bodies sense the time of day


In high school biology we (supposedly) learned that rods and cones are the basis of our visual system.  Quick refresher = cones are photoreceptors which see color and we have three types (red, green and blue), while rods are photoreceptors which respond to intensity and help us see [...]

how our bodies sense the time of day2017-06-17T23:56:41+00:00
12 06, 2017

exploring how natural light colors our world


Natural light changes with the time of day, time of year and place on earth.  These changes effect both our visual perception (how we see the world) and our biology (how we feel).  Artists have been exploring the interaction of light and visual perception since at least the [...]

exploring how natural light colors our world2017-06-12T22:10:48+00:00