Genetic and environmental effects on body mass index from infancy to the onset of adulthood: an individual-based pooled analysis of 45 twin cohorts participating in the COllaborative project of…

... until the kids become teenagers https://t.co/yFMCIcQNcw https://t.co/2uYODsgVO1

2/11 Large studies across multiple countries show that genetics account for 50-80% of individual differences in BMI among children and adolescents. This hereditary influence actually even INCREASES a bit from childhood to late adolescence. https://t.co/…

@JayMan471 FWIW, I agree that shared environmental influences do not seem to explain much of the BMI variance in twins after the age of 15 (see e.g., https://t.co/v0bXK4eZJi).

@JayNeckhammer @Bradvantagious @Molson_Hart @ChristinaPushaw I don't think framing it this way is particularly helpful, but it's "biological" insofar as it's substantially heritable (likely primarily via behavioral channels). https://t.co/CydEh1QxsG …