Yes, the Benefits of Black Coffee Sexually can help improve stamina, primarily due to its caffeine content. Caffeine is a well-known stimulant that affects the body in several ways, particularly when it comes to physical performance and endurance. Caffeine, the main active ingredient in coffee, is a stimulant that increases alertness and reduces fatigue by blocking adenosine, a neurotransmitter that promotes relaxation and sleepiness. When adenosine is blocked, levels of dopamine and norepinephrine rise, leading to increased focus and energy. Increased alertness can improve your mental endurance, allowing you to push yourself harder during a workout or maintain focus during longer physical activities.