As we grow older, it is crucial that we keep exercising and challenging the brain. When your children grow older and you have retired from your job, it can be a struggle to keep yourself busy and engaged in life. In fact, The National Alliance on Mental Illness says that 6.5 million Americans suffer from depression. It is crucial to stay socially active and mentally engaged as you age. This is key to boosting mental health. The following is a list of activities that you can engage in to keep yourself healthy: