Lack of Vitamin D Can Make You Sleepy During the Day
Interesting research out of Louisiana State University School of Medicine has compared sleepiness in individuals during the day based on their vitamin D levels using the 25-Hydroxy Blood Test, which is the most common test in determining vitamin D levels in the body.
Researchers from the university studied 81 individuals with varying forms of sleep issues and unidentified pain. The Epworth sleepiness scale (ESS) was the determining factor in each individual’s sleepiness level based on answers to a short questionnaire. ESS was originally developed by an Australian, Dr. Murray Johns, to measure sleepiness felt by individuals.
The researchers discovered that a deficiency of vitamin D, as tested by the 25-Hydroxy Blood Test, found ESS results in line with expectations. Subjects with low vitamin D levels were sleepier during the day, while those with higher vitamin D levels experienced less daytime sleepiness.
The conclusion of the researchers, which resulted from data collected during their experiment, was that there is a definite link between vitamin D deficiency and daytime sleepiness.
If you frequently feel tired and sleepy during the day, try to get more vitamin D by sunbathing or supplementing your diet with a high-quality vitamin D supplement.
What are the recommended levels of vitamin D in your blood?
If you test your vitamin D levels, you should know that a concentration of less than 10 ng/mL of vitamin D in your bloodstream is considered a severe deficiency whereas 10-25 ng/mL is a mild to moderate deficiency. Ideal levels are between 25 and 80 ng/mL, with anything over 80 ng/L considered high.