For us, how smart and considerate dogs are is not our primary concern. What we need to care most is their physical condition. Only when you have a strong body can other things make sense. Therefore, it is very important to check the dog's physical condition regularly. We can also do some small tests for the health of dogs at ordinary times.
First, touch.
Pinch the webbed skin between the middle toes of the puppy's front foot with your thumb and forefinger, and count from one to ten in your mouth, and gradually increase the strength of your fingers accordingly; If puppies have a violent struggle at first, it means that their sense of touch is sensitive. If they struggle far behind, it means that their sense of touch is not very sensitive.
Second, listening.
Before hiding a corner, make a loud sound from the sound generator. After making a sound, the puppy will be frightened and panicked. If it doesn't respond, it's best to take it to the vet to check if there is anything wrong with its ears. This can also test the dog's courage. If they return to normal soon, it means that it is a brave and calm dog. If it keeps showing a state of fear, it means that the dog is less courageous.
Third, vision.
You can use a flashlight with adjustable brightness to illuminate the dog's eyes with weak light, and keep switching the flashlight on and off. If dogs dodge light, their eyes are normal. If the dog's eyes are dull and don't mean to dodge, it's best to check if there is something wrong with the dog's eyes.