23/04/2026
Hydration is not a “nice-to-have” - it drives energy, focus, digestion, temperature regulation, workout performance, and even how well your body recovers. When you’re even slightly dehydrated, headaches creep in, cravings spike, and fatigue hits harder than it should. If you want optimal health, hydration is one of the fastest wins you can control today.
A solid, widely used rule of thumb is 0.5 oz of water per pound of body weight per day (adjust up if you sweat a lot, train hard, or live in heat). That is the same as about 30-35 mL per kg for Australians using kilos. Start there, then let your thirst, urine color (pale straw), and activity level fine-tune the target.
For more practical, body-first guidance on optimal health, grab my book: Live the Health You Want, The Care and Feeding of the Human Body on my website or on Amazon or Audible.