Cat Metabolism

Metabolism - Cat Facts

Cats can conserve energy by sleeping more than most animals, especially as they grow older. Durations of sleep are various, usually 1216 hours, with 1314 being the average. Cats, in some cases, can sleep as much as 20 hours in a 24-hour period. The term cat nap refers to the cat's ability to fall asleep (lightly) for a brief period and has entered the English vocabulary someone who nods off for a few minutes is said to be "taking a cat nap".

Due to cats nocturnal nature, they are often known to enter a period of increased hyperactivity and playfulness during the evening, dubbed the 'evening crazies', 'night crazies' or 'mad half hour' by some (but not 'happy hour').

Sleepy Cat Video

Cats' temperament can vary depending on the breed. Shorter haired cats tend to be skinnier and more active.  Cats with longer hair tend to be heavier and less active.

The body temperature of a cat is between 38 and 39 C (101 and 102.2 F).  A cat is considered febrile if it has a temperature of 39.5 C (103 F) or greater, or hypothermic if less than 37.5 C (100 F).  A domestic cat's normal heart rate ranges from 140 to 220 beats per minute which is largely dependent on how excited the cat is.  Cats at rest  have an average heart rate between 150 and 180 bpm.

Lazy Cat
Lazy Cat

from the
Maniac World Cat Video Collection