Extreme Heat Events increase congenital heart defects (perhaps low vitamin D) - Jan 2019

New Climate Change Warning: More Infant Heart Defects Medpage Today

Heat extremes seen raising incidence of congenital abnormalities

  • Projections for 2025-2035 indicated that incidence of congenital heart defects could more than double in the Midwest, where the frequency of "extreme heat events" in summer was predicted to rise more than three-fold

 Download the study PDF from VitaminDWiki
The word VITAMIN does not occur once in the study


VitaminDWiki hypothesis

Extreme Heat events ==> pregnant women stay indoors ==> less vitamin D ==> increased incidence of many birth defects, such as CHD
Study noted increased CHD is especially true for Heat Events occurring in the spring (when the body is used to restoring vitamin D levels)


RCT = Randomized Controlled Trial

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