Odd Tidbit

Did you know that there is a rise in the incidence of kidney stones at this time of year?
Elegante Mother was at the doctor’s office for a follow-up visit. She’s fine, by the way. Thanks for all your kind notes. Since her doctor, and my doctor and Dear Husband’s doctor are all the same guy, I mentioned to him that DH had passed a kidney stone. He said he wasn’t surprised. For some reason, they see two or three people a day for kidney stones during late spring and early summer.
I feel the need to surf coming on. I wonder what it is about this time of year that causes an increased incidence of kidney stones?
Does anyone have any suggestions on how to refine a search like that?