Meanwhile, painkillers, like morphine, raise levels of serotonin and noradrenaline, which regulate energy, arousal, alertness, and pleasure.

同时，吗啡等止痛药会提高血清素和去甲肾上腺素的水平，从而调节能量、觉醒、警觉性和愉悦感。

ADHD is a neurodevelopmental disorder that affects one's ability to focus, control impulses, and regulate energy levels.

ADHD 是一种神经发育障碍，会影响一个人的注意力、控制冲动和调节能量水平的能力。