Back then AIDS vaccine research was focused on stimulating the immune system to produce antibodies against the virus, a standard strategy that worked for polio and other diseases.

FORBES: Outsmarting AIDS

It is thought ingredients in ginseng improve the immune system by stimulating immunoglobin - proteins that act as antibodies.

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Vaccination is a medical procedure that works by stimulating the body's immune system.

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PT141 is a copy of a hormone which has an effect on the nervous system called alpha-melanocyte-stimulating hormone.

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The same people who became very good at manipulating me, also tended to be very good at stimulating some of the other parts of the limbic system, such as pleasure centers.

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Stimulating the production of antibodies--only one arm of the immune system--may not be enough.

FORBES: Outsmarting AIDS