I am a lifelong learner, and it is the best way to keep the mind healthy and active. There is always something new to learn, some new skill to acquire. While in the professional world one must constantly update their knowledge, personal learning should also be continuous. A new musical instrument, a new language, a new cooking style, or botany. Our mind is an organ that must be exercised just like the muscles of the body. Mental sedentarism is also the cause of many health problems.