The minute we stop learning we stop progressing. Lack of Learning suggests a lack of mental stimulation and also may increase the risk of Alzheimer's disease. Some tips for mental stimulation: - Never stop learning, so spend some time each day on reading, writing or both. - Try to acquire a new skill. - Try challenging puzzles and memory games. - Take on a focused hobby. Remember to keep that curious child alive, to keep you young and mind active.