But the disadvantage of people right there, as well. Because most people are right to not use left hand too much. Brain is used just one side. Therefore, our brains may make them deteriorate.
But certainly there are people who are right-handed as well. Because most people are right-handed to left-handed rarely use it. The brain was just one side. So could cause our brains have deteriorated.
But the disadvantages of the right-handed there as well. Because the right-handed most will rarely use the left hand much. His brain was used only one side. So may make our brain drain down.