Young people have WAY WAY more stress than any generation before them (people 40 and under).. they eat WAY worse food than any generation before them... and exercise less than any generation before them.... Jumping to the vaccine makes no sense at all.
We've all grown up with stress so not sure how they have way more stress than us. John's daughter was a healthy person so wasn't diet and exercise. My vaccine comment was merely a thought for discussion and nothing more.