How can we improve intercourse time and sexual health. in a sense of stamina and desire?

Here are some ...: The most surest means to keep up high stamina and desire is healthy lifestyle without overindulgence & obsession plus maintaining wonderful interpersonal relationship; try to enjoy the quality - not quantity - of sex life. Using pills would not sustain the effect for long, just like drinking coffee to keep awake leading to chronic sleep derivation and subsequent lethargy & fatigue.