Symptoms of Alzheimer's disease in dogs:

1. Suddenly lost, the dog may suddenly stop walking normally and not know how to continue walking.

2. Changes in work and rest. The dog originally slept at night but changed to sleeping during the day and became restless at night.

3. Aggressive, unfamiliar with the owner, full of fear, and prone to explosion and anger.

4. Dogs suddenly defecate and urinate everywhere, etc.

Methods to prevent Alzheimer’s disease in dogs:

1. Choose the right dog food: buy senior dog food that corresponds to your body type, is beneficial to the brain and intelligence, and delays body aging. It is best to choose those rich in high-quality protein such as deep-sea fish.

2. Don’t eat too much: Giving food as you want is not only easy to gain weight, but also increases the risk of dogs suffering from Alzheimer’s disease! It is best to feed 2-3 meals a day, and control the amount of food so that the dog still licks the food bowl after eating, so that it can maintain its interest in food.

3. Play games with the dog with snacks: Hide the food in different rooms and let the dog use his brain to find it. Or give it an intellectual toy that brings food, such as a food leaking toy.

4. Take regular walks: Choose a flatter road surface to avoid damaging the dog’s joints. Change the walking route from time to time to arouse the dog's interest in new sights, sounds and smells, and exercise the nervous system and receptors. Increase exercise types and maintain body coordination.

5. Appropriate social activities: During walks, letting your dog walk and play with new friends can make it more cheerful.

6. Stretching exercises: Before games and walks, let the dog do the "invitation to play" posture (put food under the dog's nose and keep moving downwards to guide it to stretch). Whole-body stretching can promote blood circulation and activate muscles throughout the body. After a walk or exercise, stretch your dog's limbs gently and massage his torso.

7. Ensure sleep quality: Using games, interactions, and walks during the day to consume excess energy can improve the dog's inability to sleep at night. Reject day and night reversal and biological clock disorder. Make sure the room is quiet and dark during sleeping time, so that the dog’s body can fully rest and be full of energy.

8. Give enough attention: call the dog's name often, chat with it, pet it often, comb its coat every day, etc.

9. Go to the hospital for regular check-ups: When your dog is old, you should often take it to the hospital for specific tests, such as ultrasound or MRI, to determine whether there are health problems. Comprehensive analysis of whether the dog's behavioral changes are due to dementia alone or whether they are related to a medical condition.