Cats, belonging to the feline family, are more widespread pets in households around the world.

The ancestor of the domestic cat is presumed to be the desert cat of the ancient Egyptian period, the Persian cat of Persia, which has been domesticated by humans for 3,500 years (but not as completely domesticated as the dog).

General cat: round head, short face, five fingers on the forelimbs, four toes on the hindlimbs, sharp and curved claws at the end of the toes, claws can be retracted, with night vision.

Hunting other animals by ambush, most can climb up trees. Cats have fleshy pads on the bottom of their toes, so as not to make noise when walking, and not to scare away rats when hunting.

The paws are in a contracted state when walking to prevent the claws from being blunt, and will extend when trapping mice and climbing.

Fact 1: Cats can help you live longer

It's true! Before you go to your local pet shelter and try to become a so-called great cat saver by adopting a bunch of cats, show some science and learn some scientific facts. Then let's talk about adopting cats (or helping justice).

What does this mean? It means that maybe you're not saving the cat, but the cat is saving you! Studies have confirmed that the purring sound cats make has healing properties.

We've all heard cats make this sound, and although veterinarians aren't entirely sure what the sound means, the healing properties of the sound are no joke.

Why cats make this sound has not been conclusively proven. Some people believe that it is a cat showing contentment, which sounds somewhat plausible. But it doesn't explain why cats make the same sound when they're hurt and scared, and they're clearly not content at those times.

Fact 2: The vibration frequency of this lovely sound made by cats is extremely specific and may have medical therapeutic effects.

The purring sound of domestic cats vibrates at a frequency between 25-150 Hz. Coincidentally, this also happens to be the optimal frequency range for bones and muscles to repair themselves. So cats may have the ability to heal themselves.

Not only for cats themselves but the frequency range of this extremely specific and super cute purr is also beneficial for humans. Researchers at the Animal Communication Research Center found that every cat tested had a purr that was in the "medically therapeutic" frequency range (20-140 Hz).

What does this mean?

It means your purring cat can help your bones and muscles recover, ease pain, and relieve indigestion, or shortness of breath ......

Fact 3: Life is easier with a cat

Unless your cat likes to jump out of nowhere and scare you.

But scientists say that compared to people who don't own pets, people who own cats are the least bothered by stress, people who own dogs are the second most likely to be bothered by stress, and people who don't own pets are the most likely to be bothered by stress.

Generally speaking, owning a pet (whether a dog or cat) is more likely to reduce stress-induced increases in blood pressure than relying on anti-stress medications.

Now it seems that having a furry little thing to de-stress is actually a very important health choice.

Fact 4: Owning a cat can reduce your chances of developing heart disease by 40%!

Researchers at the University of Minnesota have found that owning a cat may be good for your heart, and not in the "heart-warming" sense.

Their study found that people who didn't own cats were 40 percent more likely to have heart disease and 30 percent more likely to die from it, compared to those who did not.

How can this be? The researchers explain it this way.

If we assume that cat owners are the direct drivers of all this, then the most plausible explanation is that owning a cat helps to release stress and relieve tension, thus reducing the risk of heart disease.