With record-breaking heat in Texas, staying hydrated can play a key role in your health.

Studies show that a third to a half of older adults are dehydrated, which can be detrimental to their health.

Many know drinking water is vital for health, but a new study by the National Institutes of Health in the journal eBioMedicine has discovered that hydration can potentially be a preventive approach to prolong a disease-free lifespan.