Sleep and alertness are regulated by a complex interaction between the body's internal biologic clocks, the reticular activating system, and various influences such as light or anxiety that can interfere with the normal sleep cycles.
Sleep and alertness are regulated by a complex interaction between the body's internal biologic clocks, the reticular activating system, and various influences such as light or anxiety that can interfere with the normal sleep cycles.
睡眠和觉醒是众多复杂因素相互作用的结果，如人体内生物种、脑干网状激活体系统及其他各种可以影响正常睡眠周期的因素，如灯光、焦虑等。