Blood level of cortisol change in healthy subject, according to age, gender, day-night rhythm, and geographic location

ABSTRACT

Children and healthy volunteers aged 1-60 years old. In the morning, blood cortisol in female subject aged 9-12 is higher than in male and the blood level of cortisol is highest at the age group of 21-40. In aldult volunteer, blood level is highest in morning and lowest in evening (only 50% vessus morning value). In the morning there is no difference between male – female in the same locality and the difference of value is no significant between 3 various location