I agree with you, and you always have the option to keep working through the timer. But you can also take it as a time you can take your eyes off and rest.
I know people who can't get started with work. I also know some who will work 8 hours straight staring at their computer screens with the absolute minimum bathroom and coffee breaks. Doing this can cause headaches, eyesight issues, neck and back pain, hand cramps and more.
So is it really that bad of a thing if you get interrupted every once in a while and reminded to take a break? Besides, you can customize the timer as you wish. My timer is set on a 45-minute work 15-minute break (which I do not always take). So there is a lot to this method that can be a cornerstone benefit for productivity balanced with healthy habits.
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