Under the influence of sunlight and their component ultraviolet, vitamin D, the so-called calciferol, is formed. The body must have a balance of this vitamin, since with a lack of this vitamin, rickets disease appears, with an excess, severe toxic poisoning. Also, this vitamin can be obtained from other foods: liver, fish oil, dairy products.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.