Wow…this is a PHD man😢. I am wondering which institution he had attended. Meditation is good for young and old regardless of age. It is for the mind; it promotes calmness, focus, and possibly helps regular practitioner to reach enlightenment. For example: i believe Preah Ang Chan Mony’s time spent in meditation has helped him to reach enlightenment or Akashic Records (universal knowledge). The wisdoms and intelligences he possesses are beyond his age. To me he is like a live walking angel in Cambodia.❤❤❤❤❤❤❤❤❤❤❤