Hey, I think that you are onto something! I found this:
“After some research, I have compiled three potential theories as to why mental illness is so commonplace in the Irish Americans today: The Great Hunger, paternal age tendencies, and the Irish culture itself.
The first theory is certainly the most commonly heard: epigenetic changes that arose from The Great Hunger contribute to higher prevalence of mental illness in the Irish. Oonagh Walsh, an Irish historian, strongly believes this to be the case, as it is known that both the Irish and the Irish diaspora have significantly higher rates of mental illness than any other ethnic group. She believes that the nutritional deprivation endured by the Irish during the potato famine of 1845-1852 was so extreme that it caused changes in gene expression that led to a higher likelihood of obtaining mental illness at some point in life. These genetic changes have now persisted for over a century and a half. “
The Famine was a deliberate act of genocide by the English in order to reduce the Irish population to make it easier for the English to take it over.
And they lecture us about slavery?!?!?