Exercise is healthy. A nice walk before a meal will ensure that afterwards, your dog will relax and snooze. However, on very hot days, limit exercise excursions to either early morning or early evening to avoid the punishing heat of the middle of the day. Be sure to take water with you – even on a short walk. Winter or summer — ALWAYS tailor your dog’s walks to his age and general mobility. Consider walking inside a pet-friendly indoor mall if the weather is not conducive to outside exercise.