What's Coolidge effect
在多數動物當中，當雄性遇到新的雌性時，多巴胺或精液產量急劇上升；而當雄性和同一個雌性交配時，多巴胺或精液產量則無明顯改變。
相比之下，雌性傾向和相同或少數的雄性交配
Collidge effect in humans
- man reported esire for a greater number of different sexual partners than did women
- Man more than women expressed a greater preference for a variety of sexual partners, regardless of the target's attractiveness
- Man more than women have a stronger preference for their partner to frequently change their physical appearance, whereas women more than men reported changing their own appearance more frequently
