sad

According to a recent study, low levels of vitamin D are associated with an increased risk of allergies in children and adolescents.  While the study did not find a correlation between adult allergies and vitamin D levels, for the younger population this correlation was found to be significant.

Seasonal Affective Disorder (SAD) hits 20% of Americans a year. Shorter days and longer nights lead to lower levels of energy and depression rates soar as people get the winter blues. Here are some clues to see if you're suffering from a case of the winter blues.