Obviously, nobody has been able to go back to 1930, get all the people born in one maternity unit, and half of them eat lots of fruit and veg and olive oil, half of them eat McDonald's, and then we see how many wrinkles you've got later.
tornar al 1930, agafar tota la gent nascuda en una unitat de maternitat, i que la meitat mengessin molta fruita, verdures i oli d'oliva, i que l'altra meitat mengés al McDonald's, i aleshores veuríem quantes arrugues acaben tenint.