Before marriage, girls intentionally overeat and perform limited physical activity for 40 days in order to be attractive for their soon-to-be husbands.
Mental stimulation, pain and discomfort, higher/lower than normal environmental temperatures, exercise, light exposure, noise, hunger, and overeating all result in an increase in wakefulness.
The self-destructive behavior of injecting intoxicating drugs parallels overeating; it permits the user to experience comfort, and to feel punished afterwards.
