Here's a cool article in Grit magazine about Harnett Wright of West Union, Illinois. He's 93 years old and rides his bike three miles almost every day in almost any weather.
Not long after he retired from farming, at age 85, Wright started bike riding. Until then, he got his cardio-vascular exercise by walking four miles daily with his wife, Hazel. They’ve been married 69 years. But then an old ankle injury from farming started hurting so much that he could only walk a mile and a half before he’d have to stop.