California climate linked to ER visits The risk of heading to the ER for certain conditions, such as heart disease, diabetes, stroke, kidney disease and low blood pressure rises slightly as temperature and humidity increase, according to a new study.

You'll have to read this carefully, maybe living in nice cold states like Minnesota and Michigan are healthier.
selected paragraphs printed here.
http://www.fyibehealthy.com/2012/10/06/study-california-climate-linked-to-er-visits/
The risk of heading to the emergency room for certain conditions, such as heart disease, diabetes, stroke, kidney disease and low blood pressure rises slightly as temperature and humidity increase, according to a new study from California.
Researchers also found that for a few conditions, including aneurysm and high blood pressure, higher temperatures were tied to a drop in ER visits.

For each 10-degree increase in temperature, they saw increased ER visits for a variety of conditions – from a 1.7 percent rise in ER visits for heart disease to a 4.3 percent rise in diabetes visits to a 12.7 percent increase in visits for low blood pressure.

The researchers speculate in their report, for instance, that a strong pattern of temperature-related visits for heart disease and ischemic stroke (the kind caused by a clot) could be a result of “increased blood viscosity… or changes in coagulation.”