Many people feel more sexually charged when they lose weight, more than just actually losing the weight.
The become healthy, which is great not only for being physically fit and the long term effect, but the brain begins to create more chemical charges sending by neutransmitters in the brain to the specific body parts. There are many charges, the brain creates, and one which decreases with age and unhealthiness is the sexual one, when one eats right and exercise they do a lot of good to there body, plus they don't know it, but they as well let the brain go overdrive with touchy-feely thoughts. Basically, neurons in the brain send messages, lack of nutrition lowers neurons and there ability to function. This creates depression, once one intakes the proper nutrition the neutransmitters increase with much benefit.