Fig 5. Effect of nightly oral dose of 50 mg DHEA on androgen levels (testosterone, dihydrotestosterone, and androstenedione in men and women), compared with placebo. Note the significant increases in androgen levels in women and the lack of effect on these levels in men.
Catnip, in large enough quantities, will also work as an attractant for large cats like lions and tigers. Europeans in the 1400s regularly drank teas made from catnip, with the herb earning a medicinal application for treatment of colic and flatulence.
It's not just domesticated cats who enjoy the effects of catnip; many other wild species of cats also enjoy it. Cats can smell 1 part per billion in the air. Males and females, fertile or desexedâthere appears to be no one group more readily affected by catnip than another.