Anxiety isn’t always caused by thoughts alone. Very often, it reflects a deeper biological imbalance—one that begins with light.
Human physiology evolved under the full spectrum of sunlight that includes both “visible and invisible” wavelengths. Today, most people spend the majority of their time indoors under artificial lighting that lacks the deep red and invisible near infrared (NIR) wavelengths our nervous system depends on. This “unbalanced” modern light environment can quietly disrupt stress hormones, sleep, and emotional regulation, contributing to feelings of anxiety and restlessness.
“LED light exposure that is not balanced with full (spectrum) sunlight loaded with the red parts of the spectrum is always damaging to your biology.” — Dr. Alexander Wunsch, MD, PHD, photobiology expert
Science of Light’s patented SOLshine Photo Nutrition™ was developed to help restore this missing biological signal that depends on balanced “nutritional” sun-like quality light when indoors.
“Each separate frequency or color of sunlight has nutritional value for cells.” — Dr Jack Kruse, Neurosurgeon
Light and the stress response
Light is one of the most powerful regulators of the nervous system. Healthy, balanced light exposure helps set proper daily rhythms for cortisol, the body’s primary stress hormone. When cortisol is well-timed—higher in the morning and lower in the evening—we feel alert, focused, and emotionally steady. Disrupted light exposure, by contrast, can leave cortisol elevated or erratic, increasing anxiety and tension.
Supporting mood and brain chemistry
Daily light exposure also plays a critical role in regulating serotonin, a neurotransmitter essential for emotional well-being. Adequate, biologically appropriate light supports serotonin activity during the day, which in turn supports melatonin production at night—linking light directly to both mood and sleep.
Better sleep, calmer days
Poor sleep and anxiety reinforce one another. By helping realign circadian rhythms, SOLshine supports deeper, more restorative sleep. As sleep improves, many people experience reduced anxiety, calmer mornings, and greater emotional resilience throughout the day.
How SOLshine Photo Nutrition™ May Help Reduce Anxiety
Nourishing brain energy
Unlike conventional lighting, SOLshine is truly nutritious light that includes longer wavelengths of deep red and near-infrared light. These wavelengths support mitochondrial function and cellular energy production, helping the brain better tolerate stress and reducing the sense of overwhelm that often accompanies anxiety.
“One third of the energy your body consumes comes from the food you eat. The vast majority of the energy your body needs to maintain systemic equilibrium comes from environmental infrared light exposure.” — Dr. Alexander Wunsch, MD, PhD, photobiology expert
A foundational approach
SOLshine Photo Nutrition™ is not a sedative or stimulant. It works by supporting the body’s natural regulatory systems—providing light closer to what human biology evolved under.
Just 10–20 minutes of consistent daily exposure, especially in the morning, can help restore healthier light signaling and support a calmer, more balanced nervous system.
