Screen Time can Mess Your Body Clock Ms. Johnson

Which of the following electronic devices are mentioned as sources of artificial light at night?

• a) Refrigerators

• b) Laptops

• c) Toaster ovens

• d) Washing machines

How does exposure to light from electronic devices affect the body's internal clock?

• a) It speeds up the production of melatonin

• b) It has no effect on the body's internal clock

• c) It suppresses the production of melatonin

• d) It increases the body's sensitivity to artificial light

What hormone does the body start to produce about two hours before bedtime?

• a) Insulin

• b) Melatonin

• c) Adrenaline

• d) Dopamine

What were the findings of the study conducted by sleep experts at Brigham and Women's Hospital regarding the effects of reading on an iPad before bedtime?

• a) People fell asleep faster after reading on iPads compared to reading printed books

• b) People spent more time in rapid-eye movement (REM) sleep after reading on iPads

• c) People took longer to fall asleep and spent less time in REM sleep after reading on iPads

• d) People experienced no difference in sleep patterns regardless of reading on iPads or printed books

How does exposure to light from electronic devices, such as iPads, affect the brain's release of melatonin?

• a) It increases the release of melatonin

• b) It has no effect on the release of melatonin

• c) It completely suppresses the release of melatonin

• d) It cuts down the release of melatonin

Why did lighting scientist Mariana Figueiro express concern about the study's applicability to real life?

• a) The study was conducted in a controlled laboratory setting

• b) The study did not include enough participants

• c) The study's results were inconclusive

• d) The study used outdated technology

What health risks are associated with regularly getting too little sleep?

• a) Reduced risk of obesity and depression

• b) Increased risk of car accidents

• c) Improved memory and cognitive function

• d) Lower risk of diabetes

What message does the author convey regarding the importance of natural light exposure during the day?

• a) Natural light exposure has no effect on the body's sensitivity to artificial light at night

• b) Natural light exposure can increase the body's sensitivity to artificial light at night

• c) Natural light exposure can mitigate the effects of artificial light exposure in the evening

• d) Natural light exposure can worsen the effects of artificial light exposure in the evening

What is the main purpose of the text "Screen Time Can Mess With the Body’s 'Clock'"?

• a) To describe the history of electronic display screens

• b) To analyze the impact of electronic devices on sleep patterns

• c) To promote the use of electronic devices before bedtime

• d) To compare the effects of different types of lighting on melatonin production

3. How did participants in the study conducted by sleep experts at Brigham and Women's Hospital differ in their sleep patterns after reading on iPads compared to reading printed books?

• 3. a) They fell asleep faster after reading on iPads

• 3. b) They spent less time in rapid-eye movement (REM) sleep after reading on iPads

• 3. c) They experienced no difference in sleep patterns regardless of reading on iPads or printed books

• 3. d) They reported feeling more alert the next morning after reading on iPads