Cats in Sunbeams: Not Lazy, Just Charging Efficiently
Cats always find the warmest patch of light and plant themselves there — and there's real biology behind it. A cat's normal body temperature (38–39°C) is higher than a human's, so sunbathing is one of the most energy-efficient ways they maintain warmth. Ultraviolet light also helps cats synthesize vitamin D on their skin, which they absorb by grooming rather than through direct skin absorption like humans. Beyond that, sunlight boosts serotonin levels, producing calm and pleasant feelings — the same reason humans feel better after time in the sun. That completely motionless cat monopolizing the sunniest spot in the room? It's performing a masterclass in efficiency: maximum output, minimum effort.
