Domestic cats typically live between 12 and 18 years, but some can live to be over 20. Many factors influence a domestic cat's lifespan. Different breeds may have different genetic predispositions, and certain breeds may be more susceptible to specific diseases, thus affecting their lifespan.

Providing a balanced, high-quality diet is crucial for a cat's health. Long-term malnutrition or an improper diet can lead to various health problems and shorten a cat's lifespan.