Fading fast and need a jolt of energy? Sure, a cup of coffee can be great for that, and studies have shopete with the adenosine to fit into those receptors, says the Vox video team.咖啡因的作用是阻止腺苷与大脑中的受体结合，而这正是小睡能真正有所帮助的地方。“小睡前喝咖啡的好处在于，睡眠可以自然地清除大脑中的腺苷。因此，咖啡因甚至不需要与腺苷竞争就能与这些受体结合，”Vox视频小组说道。