Dangers Of Brain Drain

February 26, 2009 5:36 AM

A study suggests dementia can be caused by overworking the brain, giving it little rest. Neurologist Carolyn Brockington explains the findings to Julie Chen.

  • Read Story
    • Recommended
    • Thanksgiving Feast on a Budget Thanksgiving Feast on a Budget

      5:10 November 21, 2009

    • Knox Trial Continues Knox Trial Continues

      6:28 November 21, 2009

    • A A "Nitty Gritty" Performance

      3:25 November 21, 2009

    • Under the Radar, 11.21.09 Under the Radar, 11.21.09

      1:51 November 21, 2009

    • Inside Amazing Race: Week 9 Inside Amazing Race: Week 9

      2:24 November 21, 2009

    • Health Care Hurdles Health Care Hurdles

      4:45 November 21, 2009