Expecting some metabolic or DNA factor at work, they were shocked to learn that the only difference between the subjects that they could figure out was the amount they were moving, and that in fact those who gained weight were sitting, on average, two hours more per day than those who didn't.
Quando esperavam que funcionasse qualquer fator metabólico ou ADN, ficaram chocados  ao ver que a única diferença entre os indivíduos era quanto se mexiam. De facto, os que ganhavam peso ficavam sentados, em média,  mais duas horas por dia do que os outros.