So… Higher levels of ghrelin means elevated growth hormone. Elevated growth hormone means improved metabolism, resulting in above average fat burn rates. That’s not the only benefit of elevated growth hormone in humans. Improved recovery after physical exertion is noticed in almost everybody who has improved growth hormone levels.
Additionally, most people who have increased growth hormone levels are able to get more regular and fulfilling sleep. As humans age, we struggle to get the same amount of sleep as we were able to get in our youth. Primarily because as we get older, we fail to produce the same amount of growth hormone, or fountain of youth hormone, as we did prior to age 30.