âRule #6 Remember to repeat.
Most memories disappear within minutes, but those that survive the fragile period strengthen with time.
Long-term memories are formed in a two-way conversation between the hippocampus and the cortex, until the hippocampus breaks the connection and the memory is fixed in the cortexâwhich can take years.
Our brains give us only an approximate view of reality, because they mix new knowledge with past memories and store them together as one.
The way to make long-term memory more reliable is to incorporate new information gradually and repeat it in timed intervals.â
Excerpt From
Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School
John Medina
Most of us have no idea whatâs really going on inside our heads. Yet brain scientists have uncovered details every business leader, parent, and teacher should knowâlike the need for physical activity to get your brain working its best.
How do we learn? What exactly do sleep and stress do to our brains? Why is multi-tasking a myth? Why is it so easy to forgetâand so important to repeat new knowledge? Is it true that men and women have different brains?
In Brain Rules, Dr. John Medina, a molecular biologist, shares his lifelong interest in how the brain sciences might influence the way we teach our children and the way we work. In each chapter, he describes a brain ruleâwhat scientists know for sure about how our brains workâand then offers transformative ideas for our daily lives.
Medinaâs fascinating stories and infectious sense of humor breathe life into brain science. Youâll learn why Michael Jordan was no good at baseball. Youâll peer over a surgeonâs shoulder as he proves that most of us have a Jennifer Aniston neuron. Youâll meet a boy who has an amazing memory for music but canât tie his own shoes.
You will discover how:
Every brain is wired differently
Exercise improves cognition
We are designed to never stop learning and exploring
Memories are volatile
Sleep is powerfully linked with the ability to learn
Vision trumps all of the other senses
Stress changes the way we learn
In the end, youâll understand how your brain really worksâand how to get the most out of it.



