Maintain proper posture to avoid chronic pain and muscle strain.
I like to walk after dinner. I don’t go far, about 1.5 miles (2.4 Km). I pay attention to my posture. When I am walking with good posture I feel the energy flow into me. I walk faster. I am more aware of my surroundings (I never walk with earphones or such, I’d miss too much). Walking stooped over ages you.