Use it or Lose it!
Big Think is an awesome resource. A wide variety of subjects are covered there by experts in their respective fields. It’s a great forum to allow for interaction with these specialists and there are countless short videos explaining what they are thinking about and studying.
This particular one gives a great overview about neuroplasticity. The jist of it is that neuroscience is finding out that our brains benefit from new and different activities. Most exciting, there is some promising new hope with psychological therapies to help those that suffer from anxiety, depression, or other mood disorders. I’m pretty sure that means everyone could benefit from this research since most will suffer a bout or two of depression at least once in a lifetime and drugs just seem to be a short-term fix.