Addressing the Mind and Its Potential conference, neuroscientist Dr Michael Valenzuela describes the concept of neuroplasticity in the brain. He cites the tangible benefits that mental and physical activity have on the development and ongoing functioning of the brain to demonstrate how our neural pathways work on a 'use it or lose it' basis.Michael Valenzuela won the prestigious Eureka Prize for Medical Research for one of the great scientific breakthroughs of our time: Not only did he prove that mental exercise will reduce the risk of dementia, but he also discovered how.Sydney, December 2009