Jacob stays up late almost every night playing video games on his computer. When

Question

Jacob stays up late almost every night playing video games on his computer. When he finally goes to sleep he often has trouble drifting off. Why does watching television or using a computer late at night sometimes interfere with sleep? Select one: a. Those devices emit the type of light that resets the circadian rhythm. b. Those devices emit ultrasonic vibrations that increase heart rate. c. The excitement from using those devices increases production of steroid hormones. d. The content of those devices causes dreams to start earlier than usual in the night

Explanation / Answer

Answer:

Watching television or using a computer late at night sometimes interfere with sleep.

Those devices emit the type of light(blue light- short wavelength light) that reset the circadian rhythm.

Hence,option(a) is correct answer.

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