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.
Studies suggest that catnip may be even more effective at repelling mosquitoes than DEET (the ingredient used in most commercial bug repellents, which is highly toxic). It also repels cockroaches, an attribute that many of us living in urban areas can certainly appreciate.