Variation of light
Through research, we know that light affects us not only visually, but also biologically and emotionally. Light is important for our health and well-being, and it affects our levels of alertness. It can also adapt and stimulate our biological clock as well as our psychological state.
![Variation of light](https://www.fagerhult.com/cdn-cgi/image/width=2000,quality=80,fit=crop,onerror=redirect/globalassets/global/knowledge_hub/en-12464-1/article-pictures/lighting-of-indoor-workplaces-banner.jpg)
Variations over time in lighting conditions, in terms of intensity, lighting levels, distribution, ambient lighting and colour temperature, can stimulate people's alertness and well-being in a positive way.