Vitamin D deficiency symptoms: Does this happen when you sleep? Sign you need supplements

VITAMIN D deficiency is more likely to occur in winter because the sun, which is the main source, is in short supply. Symptoms can easily be mistaken for less serious health problems, which can be dangerous because left untreated complications can occur. Struggling to sleep at night could be a sign.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news