Studying the great things vitamin D does for us, I could not find one illness/symptom that is not effected by low vitamin D levels. Please get out into that sunshine and take a supplement of vitamin D3. Be a child again, play barefoot in the sunshine and laugh, your health will be greatly enhanced. Most experts say 4000 IU daily and at least 30 minutes of sunshine everyday will help. Persons with seizure disorders have been known to be completely seizure free when they get enough vitamin D, persons with muscular disorders have relief of symptoms when getting enough vitamin D and there is a very big link in lack of vitamin D and Cancer and Diabetes. Go, Go, Go, play in the sunshine!!!!