Seasonality of birth has been studied and reported in several illnesses, either linked with allergy and pollinisation , or in inflammatory/autoimmune diseases as Diabetis 1, childhood inflammatory bowel disease, crohn 's disease, and, links to month of birth have been found more particularly in multiple sclerosis, narcolepsy, schizophrenia,ALS and........possibly in PD.

Existing seasonal birth studies were reviewed for multiple sclerosis (MS), Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis (ALS), epilepsy, cerebral palsy, congenital malformations of the central nervous system and mental retardation. Epilepsy appears to have the most consistent pattern, with an excess of births in winter and a deficit in September. MS, ALS and possibly Parkinson's disease appear to have an excess of spring births. Studies of cerebral palsy are not conclusive, although there are suggestions that there may be an excess of summer births. The findings for Alzheimer's disease, congenital malformations of the central nervous system, and mental retardation are contradictory and insufficient to draw any conclusions.
Seasonal Birth Patterns of Neurological Disorders
E. Fuller Torreya, Judy Millera, Robert Rawlingsb, Robert H. Yolkenc
Vol. 19, No. 4, 2000



But, first, such month-of-birth patterns require very large epidemiologic enquiries to be assessed and confirmed.
Then, a birth seasonality in the development of an illness may suggest the presence of environmental factors acting in combination with genetic factors during the fetal or perinatal period, in terms of an autoimmune process ....
a wide field of research that is not that new to you, Rick, am I right?

Anyhow, please add my own birthday in late May to your personal serial test..

Anne.