 your body will make melatonin to a certain point, but after the age of 40, it lessens that ability, and so therefore, I know for a fact that a lot of my older population of patients clearly have sleep problems, whether it's due to a hormonal dysregulation of melatonin, or whether it's due to excess anxiety, or other factors, whatever it may be, rescue PM, either in the absorbable form or in the liquid form, is a natural blend of