Getting older shouldn't be something that bothers you, especially not in terms of brain-power. The average 70-year-old has still over 90 per-cent of the brain function they had when they were 20.

I was once told by a teacher that you are at the peak of your brain function at 17 and I have found this very hard to believe as I feel like I'm taking in much more now than I ever did at 17.