Vitamin D is essential for the proper functioning of our body and strengthens our immune system. Studies show that this vitamin could protect against Covid-19.
Scientific facts about some of the health effects of sunlight
We feel very intuitively that sunlight is good for us. In spring and summer we feel fitter, happier and healthier than during the dark winter months. This has not only to do with the warmer temperatures, but mostly with the sunlight. You can find out why the sun not only creates a good mood, but can also make a valuable contribution to our health, in our Sun Facts on health.
Strengthening the immune system
The vitamin D produced by sunlight has been shown to promote the factors of a strong immune system. Especially during the months of low sunlight, an extra portion of UV light can help keep the immune system in shape and, for example, prevent the flu.
Strengthening of the cardiovascular system
Cardiologists suspect a link between vitamin D deficiency and an increased risk of developing acute cardiovascular problems. Here too, sufficient vitamin D intake can be promoted by sunlight.
Therapy of depressive moods
Whether it is a severe depression or just a mild depressed mood: The cause of permanent depression in depression is a deficit of the "happiness hormone" serotonin and too much of the "sleep hormone" in the body. An increased intake of sunlight or UV light can actively help to improve our mood and actively fight depression.
Prevention of osteoporosis
Osteoporosis, a serious disease, which is associated with a progressive loss of bone substance, has genetic factors and some environmental influences, especially a deficiency of vitamin D as a cause, because it helps the calcium from our diet to be incorporated into the bones and thus to build bone substance.
How we make vitamin D
Our body can only cover a very small part of our vitamin D needs through diet and food supplements.
80-90% UV-B light
The production of vitamin D in the body is done by UVB rays (sun and solarium) in our skin, this vitamin is essential for the proper functioning of our body and for our health.
In Switzerland no production of vitamin D in the sun is possible during the winter season from October to April.