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 Vitamin D Life
The word VITAMIN does not occur once in the study

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Vitamin D Life 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)

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• Congenital heart defects twice as likely if low vitamin D while pregnant – Feb 2018
• Preeclampsia increased risk of Congenital Heart Defects by 60 percent (vitamin D not mentioned) Oct 2015
• Congenital Heart Disease is associated with gestational diabetes in first trimester (need Vitamin D and Omega-3 early) Dec 2017
• Ensure a healthy pregnancy and baby - take Vitamin D before conception has the following chart
  
• Healthy pregnancies need lots of vitamin D has the following summary
  

  Problem	Reduces	Evidence
  0. Chance of not conceiving	3.4 times	Observe
  1. Miscarriage	2.5 times	Observe
  2. Pre-eclampsia	3.6 times	RCT
  3. Gestational Diabetes	3 times	RCT
  4. Good 2nd trimester sleep quality	3.5 times	Observe
  5. Premature birth	2 times	RCT
  6. C-section - unplanned	1.6 times	Observe
  Stillbirth - OMEGA-3	4 times	RCT - Omega-3
  7. Depression AFTER pregnancy	1.4 times	RCT
  8. Small for Gestational Age	1.6 times	meta-analysis
  9. Infant height, weight, head size      within normal limits		RCT
  10. Childhood Wheezing	1.3 times	RCT
  11. Additional child is Autistic	4 times	Intervention
  12.Young adult Multiple Sclerosis	1.9 times	Observe
  13. Preeclampsia in young adult	3.5 times	RCT
  14. Good motor skills @ age 3	1.4 times	Observe
  15. Childhood Mite allergy	5 times	RCT
  16. Childhood Respiratory Tract visits	2.5 times	RCT

RCT = Randomized Controlled Trial