Tag: memory

• Special Aged

  It's pretty extraordinary for people in their 80s and 90s to keep the same sharp memory as someone several decades younger, and now scientists are peeking into the brains of these "superagers" to uncover their secret. The work is the flip side of the disappointing hunt for new drugs to fight or prevent Alzheimer's disease. Parts of the brain shrink with age, one of the reasons why most people experience a gradual slowing of at least some types of memory late in life, even if they avoid diseases like Alzheimer's. But it turns out that superagers' brains aren't shrinking nearly as fast as their peers'. And autopsies of the first superagers to die during the study show they harbour a lot more of a special kind of nerve cell in a deep brain region that's important for attention. Jeff and Anthony remember to try and stay on topic. [more]

  March 12, 2018Episodes

• Retro Virus

  Inside the brain, proteins don’t stick around longer than a few minutes. And yet, our memories can hang on for our entire lifetime. Recently, an international collaboration of researchers discovered something strange about a protein called Arc. This is essential to long-term memory formation. What they found was that it has very similar properties to how a virus infects its host. Jeff and Anthony consider what life could have been like without the ability to remember. [more]

  February 5, 2018Episodes