However, if these aged cells accumulate for any reason, these compounds can transfer their aged characteristics to neighboring healthy cells. Immune cells are attracted to fat depots to eliminate these new zombie cells, but persistent overeating and excessive fat production overwhelm the immune system's battle, and ultimately the zombie cells win. The most reasonable approach is straightforward: weight loss through proper diets and more physical activity, but always under a nutritionist's supervision. Studies show stress speeds up cellular aging and pushes obesity toward dangerous complications. Overall, obesity speeds up aging at the cellular and systemic level, and most of its complications come from this process.