Peter Attia· MD
for age the identical twins you don't even need to adjust for a gender because they share the same sex and they share a hundred percent of the genes so when you look at monozygotic and disaggotic twins the monozygotic twins they share 100 of their genes it's almost a perfect clones of each other right and to your point as adolescents they're still in the same house it would be different if you did this with 30-year-old monozygotic twins because at least there might be some environmental differences right and the environment takes place and then a lot of you know epigenetics might change even mutations so and then when you look at the disagree twins they're 50 they share 50 of your genes it's the same as surprises right siblings