Hydration 101: How Water Boosts Energy and Performance

A personal walking down a boardwalk carrying multiple water bottles

Hydration seems simple, but it impacts almost everything your body does. If you’re working, training, and trying to feel like a functional human, staying on top of water and electrolytes makes a big difference in how you perform and recover.

If you also want a simple overview of how food fits into this, our Nutrition for Strength and Recovery guide walks through protein, carbs, fats, fiber, and hydration in more detail.

Why Is Hydration Important?

Water is involved in nearly every major process in your body. It helps:

  • transport vitamins, minerals, and other nutrients

  • move oxygen through your blood to your brain and muscles

  • regulate body temperature

  • keep joints, skin, and tissues healthy

Even mild dehydration (around 1% of your body weight in fluid) can affect how you think and how you move. Your blood becomes more concentrated, which means it doesn’t carry nutrients and oxygen as efficiently. That can show up as brain fog, slower reaction time, and weaker training sessions.


Consequences of Dehydration

Common symptoms

  • thirst

  • infrequent urination

  • dry skin

  • weakness and fatigue

  • muscle cramps

  • headaches or nausea

  • dry mouth, eyes, and nose

  • elevated body temperature

  • dark-colored urine

Negative results

  • decreased athletic performance

  • sluggishness and weakness

  • delayed response time, poor judgment

  • more frequent headaches

  • decreased blood flow and circulation

  • fainting or feeling like you might pass out

  • heat-related illness (heat exhaustion or heatstroke in serious cases)

Severe dehydration can lead to muscle spasms, vomiting, vision changes, loss of consciousness, and eventually organ failure if it’s not addressed. Most people won’t get to that extreme point, but it shows why basic daily hydration matters.

How To Monitor Hydration

Everyone’s water needs are a little different, but there are simple ways to check how you’re doing.

1. Urine color
This is the easiest method. Aim for a pale yellow color. If your urine is dark yellow or closer to brown, there’s a good chance you need more fluids.

A chart displaying urine colors and levels of dehydration - the darker colors reflect dehydration, while the lighter colors reflect hydration

2. Skin elasticity (turgor)
Gently pinch the skin on the back of your hand and let it go. If it snaps back quickly, that’s a good sign. If it stays tented or takes a while to flatten out, you may be under-hydrated.

A photo of a person testing their skin turgor - pinching the back of their hand

3. How you feel
Pay attention to:

  • feeling groggy or out of it

  • getting light-headed when you stand up quickly

  • unusual fatigue in normal activities

How Much Water Do You Need?

Your exact needs depend on:

  • body size

  • activity level

  • how much you sweat

  • environment (temperature and humidity)

A simple starting point:

  • aim for at least 8 cups (64 oz) per day

  • larger individuals and people who train consistently should aim higher

It’s okay to let thirst guide you, but many people feel better if they’re slightly ahead of thirst instead of constantly playing catch-up.

Remember that you also get water from food. A diet with plenty of fruits and vegetables adds to your total fluid intake, while a diet heavy in processed, packaged foods usually contributes less.

Hydration Around Exercise

When you train, your body:

  • uses more energy

  • generates more heat

  • sweats to cool down

  • needs more blood flow to working muscles

All of that increases your fluid and electrolyte needs.

Simple guidelines:

  • drink some water in the hour before your session

  • sip during your workout, especially if it’s hot or longer than an hour

  • drink extra water after your session to help with recovery

If you’re in a warmer or more humid environment, you’ll likely need more than you think.

Don’t Forget Electrolytes

Electrolytes (mainly sodium, potassium, and magnesium) help your body:

  • hold on to the water you drink

  • maintain normal muscle and nerve function

  • regulate fluid balance

You don’t need an electrolyte mix in every glass of water, but they can help when:

  • you’re training regularly

  • you sweat a lot

  • it’s hot or humid

  • you feel wiped out or crampy after sessions

This can be as simple as an electrolyte tablet, a light mix in your bottle, or including more salty and potassium-rich foods in your day.

Practical Hydration Tips

  • Use a water bottle and know its size.

  • Decide how many bottles you want to finish each day.

  • Set mini-goals (for example: finish one 32 oz bottle by lunch, another by the time you leave work).

  • Keep your bottle with you at your desk, in the car, and during workouts.

  • Try flavored water or light electrolyte mixes if plain water is tough to drink.

  • Keep an eye on your urine color. If you can’t remember the last time you peed, it’s time to drink.

Drink Up

Dialed-in hydration won’t fix everything on its own, but it has a big impact on how you feel, how you train, and how you recover. If you’re lifting with us at bStrong in Bellevue or Redmond (or nearby in places like Kirkland), staying hydrated is one of the easiest habits you can build to support your strength training.

Previous
Previous

Reframing Stress: Balance Recovery, Life, and Training

Next
Next

Nutrition 101: Simple Tips for Energy, Muscle, and Health