The reasons why dogs are lethargic and lack of energy:

1. Pregnant dogs may have such symptoms. The owner can take the dog to the hospital for B treatment. Ultrasound to confirm whether the dog is pregnant and the status of the fetus.

2. The dog feels tired, lacks energy, and wants to sleep. It should be fine after a while. The owner doesn't need to worry too much.

3. Sick dogs may also feel lethargic and listless.

4. Due to the limitations of the current living environment and conditions, most pets are kept in cages or raised indoors, and rarely go out to exercise or come into contact with other small animals. This often causes the animals to be autistic, lethargic, and unable to adjust. Get emotional.

How to raise a good dog:

1. Adjust your mentality. Only by treating dogs as human companions and friends can we patiently raise, care for and train them. Don't be moody about it, hot and cold.

2. Pay attention to communication. The emotional connection between humans and dogs is a prerequisite for humans and dogs to live together and become companions. Therefore, owners should have more contact with their dogs, care more about them, and be friendly to each other.

3. Observe carefully. During the breeding process, the qualities, characteristics, and habits of the dog must be studied and understood in order to develop and shape it according to its characteristics and human needs.