30 adolescent girls and young women between 13 and 26 years with central adrenal insufficiency and a grand shortage of DHEA are recruit. After randomization they either get DHEA or placebo for 12 months daily. The clinical trial is double-blind to show that the substitution of the hormone DHEA stimulates secondary hair growth, enhances well being and mood of the patients. It should also normalize the serum content of DHEA, aldosterone and testosterone.