Light from tablet computers disrupts sleep, says study

Using a tablet before bedtime can decrease sleep quality due to blue light, which inhibits melatonin production by affecting the pineal gland. In contrast, exposure to orange or red light does not disrupt melatonin production, suggesting that these colors are less likely to interfere with sleep.

What is the effect of using a tablet before going to bed?

• It increases melatonin production.

• It improves sleep quality.

• It has no effect on sleep.

• It decreases sleep quality.

How does blue light from screens affect the brain?

• It reduces the need for sleep.

• It has no impact on the brain.

• It travels through the optic nerve to the pineal gland.

• It enhances melatonin production.

What role does the pineal gland play in sleep?

• It increases alertness.

• It has no role in sleep.

• It prevents sleep by producing adrenaline.

• It secretes melatonin to induce sleep.

Which type of light does not disrupt melatonin production?

• White light

• Orange or red light

• Green light

• Blue light

What is the effect of orange or red light on sleep?

• It disrupts melatonin production.

• It enhances alertness.

• It does not interfere with melatonin production.

• It causes insomnia.