sign2804's video: Stuttering has genetic roots

A new study brings researchers one step closer to unraveling a medical mystery that has perplexed scientists for thousands of years: What causes people to stutter? Research appearing in a prestigious medical journal, The New England Journal of Medicine, revealed three genetic mutations in the brain cells of people who stutter. These mutations affect a process inside cells that degrades things that the cells don't need anymore," said Drayna. "This process is called the garbage can, or more like the recycling bin, of the cell. When this process gets interrupted, the cell goes haywire, and that causes problems." And these problems, according to the study, may explain much about why people stutter. Portuguese subtitles are a courtesy from Brazilian Institute of Fluency: http://www.gagueira.org.br