Think hydration and sleep support rather than “energy drinks.” Best options: water, sugar-free mineral water, kefir/ayran if tolerated, and unsweetened teas. Caffeine can help when used in the right dose and timing, but late-day intake worsens sleep and next-day fatigue. Sugary beverages and high-caffeine energy drinks may trigger palpitations, anxiety, and blood-sugar crashes. If you constantly rely on drinks to function, consider underlying sleep debt, anemia, thyroid issues, or other causes—evaluation may be more effective than stimulants.