I think there’s a link between cortisol and testosterone. How cortisol in controlled doses increases testosterone overtime especially if you’re taking care of your body with proper nutrition and not ejaculating helps immensely.

I also see evolutionary women are horny for only a certain period of time during ovulation, where men are designed to be horny all the time to increase successful reproduction and be able to provide and protect women in his current harem so when the time comes he can.