Humans are thought to have kept cats as pets for over 10,000 years, with the first domesticated felines evolving from African wildcats.
Since then they have become the world’s second most popular pet, just behind dogs when it comes to the animals we most like to welcome in to our homes and our hearts.
In the UK alone there are more than 10 million feline friends in households.
And there are a huge range of types of cat to choose from - according to The International Cat Association there are 73 ‘standardised breeds’, along with a bewildering number of crosses.
Sadly some cat breeds are either born with pre-existing medical conditions, often due to selective breeding, or are predisposed to certain health issues.
Meanwhile others are naturally healthy and far less likely to develop debilitating conditions - with a better chance of living a long and illness-free life.
Here are the 20 most and least healthy breed of cat.
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17. Sphynx
Hairlessness breeds like the sphynx, when severely wrinkled, are prone to skin problems, sunburn and have reduced insulation. | AFP via Getty Images

18. Bengal
The gorgeous, fun-loving Bengal cat breed are known for their gorgeous markings and ability to climb, though some Bengal cats suffer from hereditary conditions such as knee and hips problems. As they have been created by breeding domestic cats with wildcats (the Asian Leopard Cat) they can also be aggressive and territorial. | Getty Images
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19. Birman
The Birman cat breed has distinctive and beautiful blue eyes. However, they are known to be prone to kidney problems. | AFP via Getty Images

20. Ragdoll
The adorable Ragdoll cat breed is super laid-back and, sadly, prone to urinary tract problems - although they are far from unhealthy as a whole. | Getty Images

