A composition of an olfactory stimulus mechanism for stimulating the production of testosterone. A method of increasing the level of testosterone in an individual by smelling the truffle extract, causing androgens in the truffle extract to attach to the olfactory bulb in the individual, and inducing testosterone production. A method of preventing the onset of Alzheimers disease in an individual by the individual smelling the truffle extract, and inducing testosterone production in the individual. A method of treating symptoms of menopause in a woman by the woman smelling the truffle extract, and inducing testosterone production in the woman. A method of treating andropause in a man by a man smelling the truffle extract, and inducing testosterone production in the man.
