Dr. Dave: Correlation between illnesses and birth month

... lifetime. The time of year can determine the abundance or paucity of fetal exposure to certain viruses, nutrition, Vitamin D (the sunshine vitamin), NHL playoffs and even pollen. For example, schizophrenia, though uncommon, has a 10 percent ...

http://www.sonorannews.com/archives/2013/130410/features-dr-dave.html