effects of procognitive light on the human body:
Improved concentration, vitality, mood, sleep, eyesight and overall health

Procognitive light improves productivity, vitality and concentration, and also reduces fatigue
- Stanford University research confirms positive effects of full-spectrum LED lighting on alertness, cognitive ability and performance
- CTU research at Prague secondary schools confirms improved academic performance thanks to pro-cognitive lighting
- Research conducted by a Slovak university showed the positive effect of full-spectrum lighting on studentsâ attention, logical thinking, problem solving and work rate. They did better in the entrance exams thanks to full-spectrum lighting.
- The prestigious WELL building certification by the global IWBI awards points for the application of full-spectrum lighting with circadian effects due to its impact on productivity, well-being and health.
Procognitive light improves mood.
Even on cloudy days, people feel the same as in summer
- A US study on 400,000 participants confirms that good quality light during the day is crucial for health, mood and sleep due to the proper functioning of circadian rhythms.
- A large Australian study of 85,000 participants found a link between the quality and quantity of light and mental illness
- The National Institute of Mental Health of the Czech Republic has confirmed through two years of testing the unique effectiveness of Spectrasol full-spectrum phototherapy devices in the treatment of psychiatric diseases and their positive effect on mood, sleep and cognitive functions.



Procognitive light reduces eye strain. The red light component helps regenerate the retina
Less blue energy helps reduce the effects of harmful blue light. The red component compensates the effects of blue light and supports the regenerative functions of mitochondria in the retina by photobiomodulation. It also provides superior visual comfort.
- An experiment by the BIOCEV research centre with several LED light sources demonstrated the positive effects of Spectrasol procognitive light on the eyes
- The CIE, the highest global authority on illumination, warns that blue spectral components of light (harmful blue light) constitute a risk for age-related macular degeneration (AMD), while red spectral components have compensatory and protective functions in light.
- A French study highlights the phototoxicity of the blue and protective function of the red parts of the spectral composition in LED lighting and recommends modification of existing standards for indoor applications.
Procognitive light improves sleep quality
Procognitive light stabilises the level of the interacting daytime serotonin and night-time melatonin hormones. This positively affects the quality of sleep and the bodyâs ability to regenerate.
- Increased exposure to good quality light during the day has been shown to improve sleep, as confirmed by a US study conducted during the pandemic
- A study conducted by US researchers confirmed higher melatonin levels and better quality sleep after just a few weeks of regular exposure to natural light during the day.
- Healthy light exposure habits affect sleep quality, mood and cognitive functions, study by German and Malaysian research team shows

Procognitive light supports overall health
A harmonious circadian rhythm, which requires a sufficient amount of good-quality light during the day and reduced amounts of light in the evening and at night, significantly reduces the risk of health problems such as cardiovascular disease, diabetes, obesity and psychological problems. Studies confirm that biologically optimised light improves overall mental and physical health and fitness.
- The CIE, the highest global authority on lighting, confirms the need to take into account the biological properties of artificial light for the proper functioning of the human body indoors and emphasises the impact on mental and physical health and vitality
- World leaders in neurobiology, chronobiology and psychiatry recommend taking into account the biological effects of light when applying artificial lighting in buildings and have set parameters for the necessary non-visual characteristics to maintain the physical and mental health of society
- Research by the National Institute of Mental Health has demonstrated the positive effects of biodynamic lighting on melatonin production, daytime vitality, cognitive functions and sleep quality for clients and staff in senior living facilities
How does it work biologically?
Light and circadian rhythms

Natural sunlight and its variations during the day synchronise the circadian rhythm through the eyeâs non-image-forming (NIF) visual system. It directs the entire human body system to be active during the day and to regenerate at night. It was only on 2003 that the circadian system was comprehensively described by J.C. Hall, M. Rosbash and M.W. Young, who were subsequently awarded the Nobel Prize in 2017.

Photosensitive ganglion cells in the eye receive information from light and send signals to the suprachiasmatic nucleus (SCN) in the hypothalamus. The SCN is the master âtimerâ or central clock that synchronises the bodyâs circadian rhythms with the external environment.

The Spectrasol lighting technology contains a balanced representation of all wavelengths in the 450-670 nm range, including full emission in the circadian or melanopic region (the cyan wavelength region in the 460-500 nm range) and thus matches the sunlight spectrum in the extent of 97%.