Do we need vitamin D?
Do we need vitamin D? 1) Why do we get tired every winter? Some people experience a similar pattern every year. As the days get colder and the days get shorter, their condition plummets. Sleep doesn't feel refreshing, and they feel more drowsy during the day. Only when people around them ask, "Are you deficient in vitamin D?" do they open the search bar. However, there's a lot of information, and even more ads. Ultimately, they stop at "How much should I take?" 2) How can you detect a deficiency? (Blood test criteria) The most common... Read more