Even the brightest artificial lighting cannot match daylight for keeping us healthy. Scientific research has proved the links between lack of daylight and a variety of physical and mental problems. In fact, experts estimate that 15% of the world’s population suffer from different levels of SAD (Seasonal Affective Disorder, or winter depression), and this tendency is higher with an increase in latitude.
There are also many other health issues connected with lack of adequate daylight. For example, vitamin D deficiency, which has been linked to problems like tiredness, fatigue and increased vulnerability to disease. You need to get outside for your body to be exposed to the sunlight that enables the production of vitamin D, and for many northern countries, we all rely on the spring and summer months to go outside. Also, artificial light can disrupt our body clock, which can lead to concentration issues, high blood pressure – and more.