“Regression” of Adiposity With More Sleep

While the association between obesity and short sleep duration is intriguing, Vorona and colleagues¹ seriously misrepresent their findings based on what appears to be confusion over “regression to the mean,” an important statistical concept credited to Sir Francis Galton,² the brilliant but misguided founder of the eugenics movement.³ The authors make 2 implausible and inaccurate statements that I fear the lay press will focus on: