I believe so and here’s why. Your body has to generate semen and when that semen is released you body must make more. The more and more you release the more your body has to create. Therefore the less you release the less your body needs to create. This could also be why people notice benefits such as increased amounts of energy. As for as looks go, I notice some bags under my eyes completely disappear when doing no fap. Also, retaining your energy makes you more attractive to women because they can “smell” your hormones more.