With summer approaching and temperatures warming up the Bay Area, it’s important to remember to stay hydrated, even if you’re not exercising. More than two-thirds of your body weight is constituted with water. The amount of water that a person needs to ingest to stay hydrated is primarily determined by physical activity, weather and health conditions.

Hydration is measured by the blood concentration of sodium, meaning that the higher the concentration is, the more dehydrated the individual. There is such a thing as ingesting too much water, called water intoxication. It is usually seen in marathon runners and rarely occurs.

Hydration is different for everyone so it’s important to experiment with daily water regimens to see what works best. The most common symptoms of dehydration include dark urine, dry mouth, fatigue, thirst, headaches and dizziness.

Hydration quick facts

•  People often mistake thirst for hunger, so if you’re hungry, think again. What you’re feeling could be your body telling you that it needs more fluids.

• Drink according to your thirst and aim to slow dehydration, not prevent it.

• When exercising for longer than an hour, use a sports drink instead of water for hydration, especially in warm weather and when sweat loss is substantial.

• Protein enhances hydration.

• Caffeine does not affect dehydration.