Obesity, insulin resistance, hypothyroidism, metabolic syndrome, PCOS, infertility, and hormonal imbalances in menopause are all reflections of a system disrupted by the modern lifestyle. A healthy diet, by reducing the consumption of sugars and ultra-processed foods, stabilizes insulin, supports thyroid function, and improves the hormonal profile in both men and women. This diet, along with stress management, exposure to sunlight, and good rest, creates the conditions for restoring internal homeostasis. Thus, the body recovers its vital energy, regulates weight, improves fertility, and restores sexual and reproductive functions, paving the way to deep and sustained well-being.