Soothing foods, such as this classic staple, may warm up your tummy and even aid in sleep. But Glassman explains the cozy feeling they stir up is caused by a release in serotonin, a hormone that fights stress, but definitely lowers the libido. Note: Though it may be obvious, stress is a libido inhibitor as well. When undergoing high levels of stress, the female body converts progesterone, (the precursor molecule to testosterone), into cortisol (the body's stress hormone), instead of hormones that make you crave sex. So try and find stress relief in a form other than hot oats-you know what the say about a good...