How much effect does having a healthy diet and regular exercise does to your aesthetic looks?

[iceEverestere]

I just need some motivation.

[Kiwedin]

Plenty. I mean, obviously genetics determines a lot, but if you look into epigenetics, we learn that our diet and lifestyle plays an even bigger role than our genetics in some cases. In terms of aesthetics, you might genetically be prone to acne, you may have a slow metabolic rate, you may gain fat and muscle easily or not so easily, you may have dry or rough skin, brittle hair, etc, but diet and lifestyle can overpower these genetic predispositions and fix them.
Personally, when I decided to change my lifestyle for the better and to become a healthier person many things changed for me. My acne was cured, my skin was much more hydrated, my hair was healthier and grew faster, my nails grew strong, I lost fat, gained muscle, and I also used to have really bad digestion so I'd almost constantly be bloated (and I looked bigger as a result) but that's also been cured due to the change in my lifestyle.

[watercolor_lions]

You have a certain radiance about you: health exudes from your face, hair, skin... You look like you're ready to take on life and all of its adventures.

I can tell how healthy a person is by their skin, hair, teeth, and nails. Major decider on if I'm attracted to them. And teeth are something you can't fix once they've gone bad :/

[dpg91]

They're fairly critical ingredients for being healthy and in good shape.

[YaBaba]

a lot.
This guy's acne cleared up when he went on healthy lifestyle/diet

[Aweir]

A lot