The other day I watched a really interesting BBC document about how to stay young and more specifically how to prevent dementia and Alzheimer's disease. As you get older your brains begin to shrink. As a result of this your cognitive skills diminish. How to prevent this? The key is to use your brains on a daily basis. More specifically scientists have discovered that learning a new language has the most efficient way to prevent dementia because learning will increase the size of your brain. According to these scientists other important ways to affect the size of your brain were reading exercising in general learning a new skill, such as playing guitar studying In the document researches investigated whether regular walks or ping poll plays had an effect on the brain tissue. The test groups walked or played ping poll for 2 hours per week. The results revealed that both test groups gained positive effects on their brain tissue because of their increased exercise. Mo...