Smartwatches can tell when you're stressed. They use a tiny sensor that measures your heartbeat, and they know how fast or slow it goes. When your heart is beating really quickly without any reason, like when you're nervous or worried, the watch knows something's going on inside you, and it says 'You might be stressed!'
Examples
- Your smartwatch beeps and says 'You're stressed!' just before your big presentation.
- It notices you're breathing faster during math class, even if no one else knows you're nervous.
- The watch detects that your heart is pounding more than usual right after a fight with a friend.
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See also
- Why Do We Get 'The Runs' on Planes?
- How Does a Fridge Keep Food Cool?
- How Does a Smartphone Recognize Your Face?
- How Did the Internet Begin?
- Why Do We Use Passwords for Security?
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Categories: Technology · smartwatches,wearable technology,stress detection