In the month of light, we want to highlight the important role of light in our health. Light is not only what our eyes see, but it also has a huge impact on our physical and mental condition. Since the discovery of new photoreceptors about two decades ago, researchers have been researching the effects of light on our health
Positive effects of light on health Studies have shown that sufficient light intensity and a higher color temperature have immediate positive effects on our attention span, alertness, performance and mood. These effects are already noticeable from 1000 lux illuminance and a color temperature of 5000 Kelvin. In addition, these light parameters also promote nighttime sleep quality and prevent sleep disorders. Especially for people who are not exposed to enough natural light cycles, such as hospitalized or immobile people, the right lighting can contribute to health in a very significant way.
Risks and challenge But light also carries risks. Direct photochemical retinal damage caused by short-wave visible radiation is a possible danger. Long-term health risks arise from circadian disorders, which can increase the risk of various diseases, including cancer. It is therefore important to design artificial lighting in such a way that it interferes as little as possible with the natural secretion rhythm of melatonin and cortisol.