James Michael Howard <jmhoward at arkansas.net> wrote:
> Horm Res. 1998;49(5):240-6.
> Ambrosius WT, Compton JA, Bowsher RR, Pratt JH.
> A strongly inverse relationship of serum testosterone levels with serum leptin
> levels in boys (p = 0.0067) appeared to explain this effect of age.
> A higher testosterone level in boys appears to account for an age-related
> decline in serum leptin in boys and the overall lower levels in boys than in
But a correlation is no evidence that one is the cause of the other.