What is Subthreshold Depression?
Subthreshold depression involves clinically significant depressive symptoms that do not meet the full criteria for major depressive disorder. Individuals may struggle with persistent sadness, low
Light entering the eyes regulates brain chemistry and synchronizes vital circadian rhythms that control… Appetite, Energy, Mood, Sleep, Libido and so much more.
Science of Light (SOL) is a 501(c)(3) non-profit organization dedicated to the legacy of photobiology pioneer, Dr. John Ott, the father of full-spectrum light technology.
SOL’s Mission:
To enlighten humanity of the essential need for daily light hygiene to support wellness & reduce the risk of — mal-illumination.
SOL’s Mandate:
Share freely our years of research and provide the lighting technology that mitigates the indoor epidemic of mal-illumination.
“We are all light deficient and this deficiency may be the source of our physical and emotional problems.” — Dr. John Ott, Health and Light, 3,000,000+ copies sold
Science of Light has developed Nutritional Light Technology… the “fullest” spectrum light source.
SOL’s technology builds on Dr. Ott’s original full-spectrum light technology by intrinsically improving the spectral quality and biological benefits that help ignite metabolism and regulates brain chemistry & circadian rhythms that control appetite, energy, mood, sleep, libido and so much more.
Subthreshold depression involves clinically significant depressive symptoms that do not meet the full criteria for major depressive disorder. Individuals may struggle with persistent sadness, low
NOURISH YOUR BRAIN Instantly Enhance Brain Function, Alertness & Cognition —Nutritional Light Technology™ “My wife and I incorporate SOL PhotoVites in our daily, morning routine

SUNLIGHT: A Vital Nutrient for Human Health …the most ancient and powerful nutrient of all. Sunlight is often viewed merely as a source of warmth
Twice a year, millions of people struggle to adjust their internal clocks due to Daylight Saving Time (DST)—especially in the spring when we “lose” an hour
According to research, working in dim lighting can change the brain’s structure and hurt one’s ability to remember and learn. The study tracked the brains of
IT’S SIMPLY NOT TRUE . . . Most SAD lights claim that they “simulate sunlight” or “mimic outdoor light” that’s missing during the darker winter