Miya Pearson
Cats are mysterious creatures, and their purring is no exception. While we don't know the exact reason why cats purr, it is generally associated with contentment and happiness. Kittens, in particular, use purring as a way to communicate with their mothers, indicating their well-being and perhaps a request for feeding. When it comes to sleeping, cats may purr due to various factors, including relaxation, dreaming, bonding, or even self-healing. However, it's important to be vigilant as purring can also indicate stress, pain, or sickness, especially if it's accompanied by other subtle signs of discomfort. Understanding the context and your kitten's overall behavior can help decipher the meaning behind their soothing purrs.
| Characteristics | Values |
|---|---|
| Relaxed and content | Happy dreams |
| Preparing for sleep | |
| Feeling stressed | Self-soothing |
| In pain or injured | Sickness |
| Bonding with housemates | |
| Healing |
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What You'll Learn
Kittens purr to bond with their mothers
Cats typically purr when they are happy, relaxed, or feeling content. However, they may also purr when they are scared, in pain, injured, or sick as a way to calm and soothe themselves. The purring sound is caused by a vibrating larynx or voice box, with the muscles in this area expanding and contracting rapidly to create a continuous hum.
Kittens begin to purr from a very young age, even a few days after birth, to communicate with their mothers. Purring helps mother cats locate their kittens for feeding time, and the sound is also comforting to the kittens, promoting bonding and stimulating their development. The mother cat's purr is a deep, rhythmic rumble that provides a sense of comfort and security for her newborn kittens, and the kittens start to purr back as early as two days old, strengthening their bond.
In addition to bonding with their mothers, kittens may also purr to communicate various emotions as they grow older. For example, they may purr to express contentment or to solicit food from their owners. Purring can also occur independently of the brain, and cats may purr in their sleep when they are relaxed and content, possibly due to dreaming.
Overall, purring is a multifunctional tool in the feline world, used for communication, comfort, and bonding. While it is often associated with happiness and relaxation, it can also indicate stress, pain, or sickness, especially when accompanied by other signs. Understanding a cat's body language and context can help decipher the meaning behind their purrs.
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Purring can indicate pain or sickness
While cats usually purr when they are happy, relaxed, or feeling positive emotions, they can also purr when they are in pain or sick. This phenomenon is called a "paradoxical purr". Cats may use purring as a way to calm themselves down or soothe themselves during times of stress, pain, fear, or sickness. Purring may also have healing properties, acting as a form of vibrational therapy that helps with pain management and stimulates muscle and bone repair.
Cats in pain or sick may exhibit abnormal breathing, such as breathing more than 30 times per minute, breathing with an open mouth or with exaggerated chest movements, or making upper respiratory noises. They may also lose their appetite and refuse to eat or drink. If you suspect your cat is in pain or sick, it is important to seek veterinary attention.
In addition to pain or sickness, cats may also purr when they are scared or injured. Purring can be a way for cats to comfort themselves and promote healing. It is important to pay attention to your cat's body language and other behavioural cues to determine the underlying cause of their purring.
While purring can indicate pain or sickness, it is not always a reliable indicator. Cats may purr for various reasons, and it can be challenging to determine the exact emotion they are expressing. Therefore, it is essential to consider other factors and behavioural changes in conjunction with purring to assess your cat's overall well-being.
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Cats dream and purr during REM sleep
Cats typically purr when they are happy, relaxed, or feeling content. However, it is not unusual for cats to purr when they are stressed, in pain, scared, or sick. This is known as a paradoxical purr, and it may help the cat calm down and soothe itself. Purring has been shown to promote bone and tissue healing, so cats may also purr while sleeping to aid in physical self-healing.
Cats can dream during the REM stage of sleep, just like humans, and they may purr as a result of these dreams. While we don't know all the reasons why cats purr, it is generally considered a positive behaviour. Purring is caused by a vibrating larynx or voice box, which creates a constant hum that varies from cat to cat.
During the first stage of non-REM or light slow-wave sleep, cats are still easily awakened and aware of their surroundings. This is followed by deep slow-wave sleep, where they are less responsive to external stimuli. The final stage is REM sleep, during which cats may experience vivid dreams and make small movements or twitches with their face, paws, or tail.
While purring is a common behaviour for cats, not all cats will purr. It is important to pay attention to other subtle signs and changes in behaviour to determine if your cat is happy and healthy. For example, if your cat is purring with its ears flattened or turned to the side, wide eyes, and forward- or downward-pointing whiskers, it is likely stressed.
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Purring is self-soothing and promotes healing
Purring is a common behaviour for cats, and they may do it for various reasons. While cats usually purr when they are happy, relaxed, and content, they can also purr when they are stressed, in pain, scared, or sick. This is known as a paradoxical purr and is a way for cats to soothe themselves and promote healing.
The low-frequency vibrations of a cat's purr are believed to promote bone and tissue growth and reduce pain and swelling. This is supported by the fact that sound therapy is used in human medicine for similar purposes. Thus, cats may purr in their sleep as a way to physically self-heal. The purring sound may also promote healing in other cats, fostering comfort and bonding. For instance, a mother cat and her kittens may purr together as a means of bonding and mutual healing.
Cats may also purr in their sleep because they are dreaming. During the REM (Rapid Eye Movement) stage of sleep, cats experience vivid dreams, just like humans. Purring during sleep may indicate that a cat is having a happy dream. However, it could also signify a bad dream, as purring can communicate various emotions, including stress and anxiety.
While purring is typically a positive sign, it can sometimes indicate physical discomfort or illness in cats. Therefore, it is important to pay attention to subtle behavioural changes and other accompanying signs to determine if your cat needs veterinary attention. For instance, if your cat is purring more frequently or in different situations than usual, it could be a cause for concern.
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Purring is caused by a vibrating larynx
The exact mechanism behind purring is still not fully understood, but it is believed that purring is caused by a vibrating larynx or voice box. The muscles that make up the larynx expand and contract very quickly, creating a constant hum that varies from cat to cat. This process is known as flow-induced self-sustained oscillation, where the vocal cords vibrate and produce sound without any further neural input.
The vibrating larynx theory is supported by a study in which scientists isolated the larynxes of euthanized cats and pumped air through them. By doing so, they were able to produce purring in all of the larynxes without any muscle contractions or input from the brain. This suggests that purring may not require active muscle contractions and can occur independently of the brain.
However, some researchers argue that the behaviour of a living cat's vocal cords might differ from those that have been surgically removed. It is proposed that purring is likely driven by a combination of neuronal control and self-sustained oscillation. The unique masses of fibrous tissue embedded in cats' vocal cords may also play a role in the production of low-frequency sounds.
The purring sound is a unique vocal feature of domestic cats and some other species in the Felidae family, such as bobcats, cheetahs, and wild cats. It is produced during the entire respiratory cycle, both inhaling and exhaling, which is different from other cat vocalizations like meowing. The frequency of cat purring typically ranges from 20 to 30 hertz, which is quite low for an animal of their size.
While the exact reason why cats purr remains a mystery, it is generally associated with contentment and pleasure. Cats often purr when they are happy, relaxed, or feeling safe and comfortable. However, cats can also purr during times of stress, pain, fear, or sickness as a way to calm and soothe themselves. Additionally, there is some evidence that the purring sound may promote healing and have a positive impact on the cat's body.
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Frequently asked questions
Yes, it is perfectly normal for cats to purr while sleeping. Cats purr when they are happy, relaxed, or even when they are unwell.
Your kitten may be purring in its sleep because it is dreaming, either a good or bad dream. Cats can also purr to soothe themselves and promote self-healing.
Purring by itself is not an indication of concern. However, if you notice frequent purring accompanied by other signs such as changes in behaviour, it may be best to take your kitten to the vet for an examination.
