“In Kali-yuga, the duration of life is shortened not so much because of insufficient food but because of irregular habits. By keeping regular habits and eating simple food, any man can maintain his health. Overeating, over-sense gratification, overdependence on another's mercy, and artificial standards of living sap the very vitality of human energy. Therefore the duration of life is shortened.” (Shrila Prabhupada, Shrimad Bhagavatam, 1.1.10 Purport)