>>519425609
Among what other anons have said concerning cortisol and the worsening food quality in the Anglo-Saxon world, the answer is alcohol and nicotine.
You can see this clearly in the British population. Girls start drinking heavily at 12 years of age and look 30 at the age of 18 as a result. Those who do not participate remain normal-looking.
On a more global scale, however, the greater alcohol tolerance of Whites raises their average consumption, without raising the necessary quantity consumed to begin getting subtle health effects and premature aging.