Sometimes dating really stinks, particularly when there's no chemistry between you and your mate. But it's possible that you're turning each other off because of the way you each smell. Humans give off pheromones, or chemicals, that are intended to attract members of the opposite sex. Scientists speculate that now the influence of many pheromones may not be as strong due to humans' urges to be clean and free of body odor. Also, the tiny organ that detects pheromones is less effective in adult humans. But they're still there, and they are the reason why women who live in proximity to one another begin to fall into the same menstrual cycle. In the animal kingdom, pheromones direct male marine animals to fertilize eggs, and bees use them to attract other workers to the hive. And while they do serve a purpose in some human functions, they're not as influential regarding sex as purported. There is no proof that spraying on a chemical will attract a mate any more so than going au naturel, so don't waste your money on snake oil, expecting yourself to become a mate magnet.