There are numerous products and substances that are promoted specifically to help boost a less-than-optimal sexual response. Here are some natural varieties:

• Ginkgo biloba and ginseng. Both are recommended for improving blood flow to the brain and extremities. Ginkgo greatly increases the concentrations of dopamine and other neurotransmitters, the forerunners of increased pleasure, happiness, and alertness. Ginseng increases the production of sex hormones like testosterone and progesterone and helps keep up your stamina. It helps moderate stress, stimulates the immune system, and can decrease menopausal symptoms.

• Lycium fruit. This Chinese berry has been used as a natural treatment for male impotence, as well as health conditions such as anemia and lung problems.

• Saw palmetto. This herb is effective in stopping swollen prostate growth. While some claim that it can actually shrink a swollen prostate gland, most experts say that it is effective only in stopping additional swelling from occurring. This can help increase the flow of semen from the testicles, help with urinary problems in older men, and relieve the tension to the urinary tract caused by the enlarged gland. This tension often leads to an uncomfortable feeling during sex. Since men over age fifty are so susceptible to prostate enlargement, it is a good idea to take saw palmetto regularly as a preventative measure.

• Black cohosh. This herb is known for its balancing effect on female hormones. Both estrogen and progesterone levels are influenced by its properties. It is a great treatment for premenstrual symptoms and menopausal problems related to lubrication and sexual receptiveness.

In addition to these natural substances, there are a few more supplements worth mentioning. Wild yam, L-arginine (taken orally), kava kava, Damiana, Pygeum, and stinging nettle are a few. You can find more information on these items and others in books, on the Internet, and from reliable health food stores. Not only are they healthful additives to your diet, they have the added distinction of whetting your sexual appetite.