Overindulgence in harmful activities until the person is eventually completely destroyed. Every drug addicticted zombie, every 500 pound obese person, every whore with 100 different sexual diseases, these are all hedonists. And they all have destroyed themselves because a tiny drop of dopamine as an instant reward means more to them than anything in the world.
We work to build true strength, true health, and true power. Which requires patience, effort, and years of work to create monuments of strength which have deep foundations that are truly permanent. Somebody can smoke a crack rock and instantly feel a strong synthetic joy, but their body and soul are soon killed. But a man who works for years on creating a perfect life may take years to feel that same feeling of reward, but his is based on something real and true and everlasting.