Genes that cause ________ can do so by producing an immune system attack on brain cells that enable alertness.

Question

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Narcolepsy is a sleep disorder that is caused by the immune system attacking the brain cells responsible for regulating wakefulness and sleep. This attack is believed to be triggered by genes that increase the risk of developing narcolepsy. Sleep apnea is caused by breathing difficulties during sleep, insomnia is the inability to fall or stay asleep, and sleep-talking is a harmless sleep behavior.

Genes That Cause ________ Can Do So by Producing an Immune