December 22, 2008 8:26 pm Vitamin Supplements Don't Deliver Promises, Study Says New long-term studies say vitamins don’t fight cancer, heart disease or other illnesses and may even cause harm. Wake Up to Something Good 0:40 Midlothian teen gets ‘NFL Draft' experience 2:11 New app helps dementia caregivers focus on their own health 2:19 Grandfather of seven shares how he survived a rare heart event 0:32 Peerfest conference celebrates Texans on a wellness journey 3:06 North Texas nonprofit hosts free youth mental health class