Perhatikan kecepatan gerak anjing Anda. Perhatikan porsi makannya. Perhatikan porsi tidurnya. Perhatikan perilakunya di sekitar anjing lain. Perhatikan penampilannya. Jika Anda melihat semua tanda ini pada anjing Anda, jagalah agar dia tetap merasa nyaman.

Given the above summary, write a detailed text in English for it.
When your dog is slowing down in movements but is still able to eat, drink, walk, stand on its own, and can still respond to your calls, this is a sign of just plain old age. He's not suffering any particular pain, he's just growing old. Your dog can still do the things he/she enjoys, like walking around, being petted, playing, or socializing with other dogs, though in a more decreased frequency and intensity. As dogs get older, they will likely begin to eat less than they used to. Older dogs generally expend fewer calories and require less food than energetic young dogs. It's nothing to be alarmed about—it's just a normal part of the aging process. An old dog will sleep more and more, but still being able to stand and move around and eat afterward. A dog who sleeps and doesn't move around and eat is very sick; a dog who sleeps a lot and still eats and seems social is aging. As dogs get older, they may show less interest in playing and socializing with other dogs. You might find that your dog gets overwhelmed or irritable in social situations more easily than before. A number of things will sprout up as your dog ages. Look for the following:  Gray or white hairs appearing in the coat, especially on your dog's face. Parts of the body where friction is common getting bald or hairless. You may particularly notice this in the elbows, pelvic area, and butt. Dental problems, such as loosening or staining of the teeth. Some of your dog's teeth may fall out, or you may need to have them extracted by a vet. If your dog is already in this stage of old age, provide comfort by:  Placing you dog in a well ventilated and warm room. Providing comfortable bedding to support your dog's joints and minimize pain. Providing (but not forcing) food and water. Spending time with your dog daily. Even if your dog is not up to playing or going for walks, he or she will probably still enjoy gentle petting and listening to your voice.