Research overview: early handling and the development of friendliness

How much and how kittens are handled early in life affects their friendliness toward people, and this overview surveys the experimental evidence. It examines studies manipulating the amount of human handling during the sensitive period and measuring later sociability, generally finding that more handling, up to a point, produces kittens that are bolder and more affectionate toward humans, with effects on approach, holding tolerance and willingness to interact. The survey discusses how handling interacts with other factors such as the number of handlers and the kitten's genetic disposition, and the practical lessons for breeders and shelters seeking to raise well-socialized cats. It connects this work to the broader understanding of feline temperament as shaped jointly by early experience and inheritance, presenting deliberate, gentle early handling as an effective way to foster human-friendly cats.