Cats and humans have shared homes for thousands of years, yet some popular ideas about feline behavior are more myth than reality. Here are four common beliefs and what everyday observations (backed by general research) actually show.
1. Milk is great for cats The classic image of a cat happily drinking milk is widespread — but most adult cats are lactose intolerant. After weaning, they produce much less of the enzyme needed to digest lactose. Offering regular cow’s milk can lead to digestive discomfort. Plain water is always the safest choice for hydration.
2. Cats are nocturnal Many people notice their cats becoming active when the house is quiet, leading to the idea that cats are fully nocturnal (awake all night, asleep all day). Actually, cats are crepuscular — most active at dawn and dusk. This pattern matches the times when small prey animals are often moving. Daytime naps and evening zoomies are completely normal.
3. Purring always means a cat is happy Purring is most often a sign of contentment, but it’s not the only reason cats purr. They may also purr when stressed, in pain, hungry, or even while falling asleep. It can be a self-soothing behavior. Look at the whole picture — ear position, tail movement, and overall body language — to better understand what your cat is feeling.
4. Cats don’t really bond with their owners Compared to dogs, cats can seem more independent, leading some to believe they don’t form strong attachments. Observations and studies of cat behavior show that many cats do develop genuine bonds with their caregivers. They often seek comfort from familiar people, especially in new or uncertain situations — just in their own subtle, feline way.
Understanding these simple truths can help strengthen the relationship between cats and the people who share their homes.
If your cat shows sudden changes in eating, litter-box habits, or energy levels, consider checking in with a veterinarian.