It's a familiar sight across the world, people buried in their phones.
But now a team of students in Indonesia is hoping a watch can fix your smartphone addiction.
(SOUNDBITE) (Indonesian) NETTOX WATCH TRIAL USER, TYAS SISIANINDITA SAYING: "I realised that I am addicted to gadgets.
I can use the gadget for up to eight hours a day.
Starting from the time I wake up, I always check my phone -during class recess and in class too.
At night, when I have insomnia, I can use the gadget for up to five hours." Students from the University of Indonesia spent three months developing "Nettox" -- a wearable device to monitor internet users' health as a way to help them reduce addiction.
The watch is installed with a sensor that measures the oxygen level in haemoglobin and heart rate variability (HRV).
Usually people who use internet for a long period of time exhibit low HRV as they are less active, while physically active people have high HRV.
People who are hooked to the internet have a tendency of sitting or lying down for a long time - hence their HRV level is generally low.
The Nettox team is now working to 'personalise' the features to improve its accuracy and they plan to apply for patent next year.