Intergenerational lag effects, potentially influenced by parental or grandparental weight through cultural or epigenetic factors, may affect current obesity rates.

“and then I think there's some intergenerational lag effects that we or at least I don't fully understand if you look at the the Danish data torl senson and others have written about this they for over 100 years conscripted if that's the right word every 18-year-old healthy male into the Danish Army — and they have not only Heights and weights of each one naked kind of weirdly they have photographs of each of them naked — and what you see in these these BMI levels is you'll see a period where it's flat for a little bit approximately then you'll see a steep acceleration or steep increase and then it'll flatten out again a little bit and then you'll see a steep slope and this happen this has happened your three or more Cycles I think I don't think anybody exactly understands why”