#3: Generating New Neurons
It seems ironic that one of the greatest mysteries remains the human brain. We use our brains to make sense of the world and develop new scientific discoveries. However, our greatest tool remains one of the greatest mysteries that still needs a lot of research. Ideas about the brain are constantly changing.
For example, it was a commonly held belief that someone is born with all the neurons their brain will ever produce. As we age, our neurons die off and never regenerate. However, recent studies have shown that neurogenesis can occur in our brains when we are kids and adults. Our brains can develop new neurons and pathways when we learn something new, exercise, and experience something new.