<human>: My dog is getting older. What are some ways to keep him healthy?
<bot>: 
1. Make sure your dog gets regular exercise, at least 30 minutes a day.
2. Provide a diet that is high in protein and low in fat and carbohydrates.
3. Give your dog supplements like omega-3 fatty acids and vitamins C and E.
4. Regularly check for any signs of illness or injury such as coughing, lethargy, or weight loss.
5. Have regular veterinary check-ups to monitor your dog’s health.
6. Keep your dog safe from environmental hazards like hot pavement, antifreeze, and insecticides.
7. Spend time with your pet and make sure they have plenty of socialization opportunities.