What to watch with MC4R and Müdigkeit?

MC4R variants (e.g., rs17782313) are associated in GWAS with increased calorie intake and higher BMI, not directly with fatigue. An indirect link is plausible: chronic overeating or obesity can contribute to fatigue, as can disrupted energy homeostasis. However, specific studies linking MC4R directly to fatigue are lacking. The evidence is therefore weak and purely associative. Focus on balanced nutrition, adequate sleep, and physical activity. If fatigue persists, have other causes (thyroid, iron deficiency, sleep apnea) evaluated by a physician. A single gene does not explain fatigue.