<h2><p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 2; background: white;"><span style="font-family: Arial; color: #333333; font-weight: normal;">The old saw about drinking eight glasses of water a day for overall health is widely considered a myth.</span></p></h2>