Fatigue rarely has a single “magic fix”; the best approach is to address common drivers in a structured way. Start with sleep: 7–9 hours, consistent bed/wake times, morning daylight, and less late-night screens and caffeine. Next, nutrition: include protein at each meal (eggs, yogurt, fish, legumes), high-fiber carbs (vegetables, whole grains), and adequate hydration while limiting sugary drinks and frequent snacking. Add movement: at least 150 minutes/week of moderate activity; even short walks can improve mood and perceived energy. If fatigue persists, consider objective checks: CBC, ferritin/iron, vitamin B12, vitamin D, thyroid (TSH), and glucose—guided by a clinician. Seek medical evaluation sooner if you have chest pain, fainting, shortness of breath, palpitations, weight loss, fever, bleeding, or fatigue lasting beyond a few weeks. This content is educational and not a substitute for medical care.