Health & Lifestyle

How Phones Keep Us Awake at Night

A talk about how late-night screen use affects sleep and what families can do about it.

B29 min

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1Many teenagers spend several hours on their phones before they finally go to sleep at night.

2The blue light from screens tells the brain that it is still daytime outside.

3As a result, the body produces less melatonin, the hormone that makes us feel sleepy.

4Researchers have found that heavy phone users often take much longer to fall asleep.

5They also wake up more often during the night and feel exhausted the next morning.

6Sleep doctors advise people to stop using screens at least one hour before bed.

7Keeping the phone outside the bedroom removes the temptation to check messages at midnight.

8Some families now charge all their devices in the kitchen overnight instead of the bedroom.

9People who follow this advice usually report deeper sleep and better concentration during the day.

10Small changes to our evening habits can therefore make a surprisingly big difference.

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