8 to 80 is the true story of Glen Filberth, a man who was a Doctor, a wartime Bomber pilot, and a prisoner of war for over one year under brutal starving conditions. In youth he was an abused boy by a stepfather. Having a strong desire for a college education, Filberth braved traveling as a hobo on freight trains to obtain profitable work. He worked on western ranches, civilian conservation camps, and fought forest fires in the mountainous terrain of Idaho. Finally, Filberth worked his way through college to obtain Doctorate Degrees in Naturopathy and Chiropractic. In WWII he enlisted as an Aviation Cadet for Pilot Training. His training in planes including the twin engine Fighter P-38. After getting his wings he was assigned to pilot a B-17 Bomber, until, after flying seven missions over Germany, he was shot down and became a POW. After more than a year of many abuses he was liberated and returned to the States to resume his Illinois-based natural healing practice. In 8 to 80 he tells of many successes in relieving and even curing many so-called incurable diseases, with diagnosis made by reputable clinics and physicians. This book includes letters from thosepatients. He writes of his family life, their sports and experiences that were interesting. He writes of hunting, fishing, golf, bowling and water-skiing, and includes many pictures, depicting the lifestyle. Everything that he assumes would be interesting to the reader is included within 8 to 80.