Inheritance | Radiolab | WNYC Studios

https://www.wnycstudios.org/podcasts/radiolab/articles/inheritance-2204

If your grandfather suffered near starvation between ages 9-12, his children and grandchildren have stunningly lower risk of serious diseases like diabetes and heart disease. That's because it's the age when spermatogenesis happens, and epigenetic changes occur that are passed on. 

Act 3 is a really thought-provoking look at a program to pay drug-addicted mothers to be sterilized. It's a really polarized debate. Some people think it's good to prevent pregnancies that are unwanted and babies that start life in drug withdrawal. Others feel it borders on Nazism to control reproduction when there are some drug-addicted mothers who later become great mothers of good kids.