Human: Which is better for your health: walking or running? Assistant: 
Walking is generally considered a more gentle form of exercise than running, and it can be done at any age. Running has been associated with higher risk of injury, so if you are just starting out, walking may be the safer option. However, both forms of exercise can provide many health benefits, including improved heart health, increased muscle strength and endurance, weight loss, and improved mental well-being. So it really depends on what you're looking for in terms of health benefits.