Estrogen, for example, has potent effects on fat stronge. The fact that woman have a level of estrogen higher than that in men is one key reason woman naturally have more body fat. Estrogen not only promotes fat strorage, it can also make losing weight and fat much more difficult. In fact, farmers often fatten up their livestock by injecting them with estrogen. Synthetic estrogens commonly sed in hormone replacement therapies and birth control pills are often fat promoting as well. Women prescribed any from of estrogen, especially synthetic forms, should be aware that these drugs can actually by counterproductive to women’s healt by promoting weight gain.Testosterone, on the other hand, has powerful effects that stimulate fat burning, giving younger men a natural advantage over women when it comes to losing fat.
You’ve probably noticed that men under thirty can shed pounds quickly and without much effort. Teenage boys, in particular, who have very high levels on testosterone promotes muscle growth and preservation, which result in increases in the amount of calories burned even while resting. The same hormone that gives young men their strong sex drive also helps them stay lean.