How Hydration Affects Your Muscle Performance (and Why Most People Over 65 Don’t Drink Enough)

Think hydration doesn’t matter? Think again.

Your muscles are about 75% water. When you’re even slightly dehydrated, you might notice:

  • More muscle cramping
  • Faster fatigue during exercise
  • Joint stiffness
  • Slower recovery from workouts

Adults over 65 often underestimate how much water they need, especially if they’re active. Plus, as we age, our sense of thirst decreases—so we may not feel thirsty even when we need fluids.

How much should you drink?

  • About half your body weight (in pounds) in ounces of water daily.
  • More if you’re sweating heavily or outdoors in Louisiana heat.

Quick tips to drink more:
✅ Carry a water bottle everywhere
✅ Flavor water with lemon or cucumber
✅ Drink a glass before every meal
✅ Track your intake in an app

Stay hydrated, and you’ll feel the difference—in your workouts and your everyday life!

Staying hydrated isn’t just about quenching your thirst—it’s a powerful tool for keeping your joints healthy, your muscles strong, and your body functioning at its best. If you’ve been feeling sluggish, stiff, or sore, consider checking your hydration habits first. Need more personalized advice? Let’s talk about your activity levels, health goals, and the simple steps you can take today for a healthier tomorrow. Your body will thank you—sip by sip!

Jeremy Sutton, PT, DPT, Cert DN

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