Ever wondered how you can improve your IQ? Studies show that you can become smarter. This does not mean that you start using more of your brain. It simply means that you can enhance your cognitive skills.
You can surely train your brain to perform better in the areas that you want. For example, if you want to become a better athlete, you need to practice and re-wire your brain to not feel tired easily. You can do it with regular practice, loads of exercise, balanced diet, adequate rest and meditation. Read more about it at Theguardian.com.