Counselor and humanities teacher Luba Bek says that it is common for students to be more susceptible to sickness after not getting enough sleep, reports the (Harvard-Westlake) Chronicle.

When Lucas Perez ’16 finally starts to fall asleep, he hears a siren blare.

Its chaotic, high pitch mingles with a shrieking wail. The sounds grows louder, and the chaos builds until it’s all he hears. A migraine develops, pulsating in his brain to the beat of his racing heart. He tries to move his arms, but they stay frozen.