When a cat is coming to the end of its lifespan, it will show some obvious symptoms.

Cats may begin to refuse food or even lose interest in foods they previously enjoyed, causing them to gradually lose weight and become emaciated.

Reduced activity: The cat will become less active, no longer like to play, prefer to lie down and rest, or spend long periods of time sleep.

Sensory degradation: Their vision, hearing and other sensory abilities will be significantly reduced, their sensitivity to the environment will be reduced, and their reactions will become slower.