We all know that staring at your phone for hours on end is not good for your mental health. But what about your fingers? Until now, researchers have not been able to measure this. A new AI model, Log2Motion, from the universities of Aalto and Leipzig is now changing that.
The model converts smartphone logs into simulated human movements, like a digital skeleton moving its finger across a phone’s screen, mirroring real users.
It can even use real apps in real time via a software emulator, mimicking logged interactions to examine what physically happens with every swipe, tap and scroll.
Does scrolling affect our health?
Yes, according to researchers, scrolling has a negative impact on your health. They found that not all gestures are equally easy to perform. Wiping up-down and down-up requires more effort than other movements. That’s what most of us do in today’s world of short-form content. So if you need further confirmation to stop using apps like Instagram and TikTok, you can find it here.
Researchers also found that tapping small icons and reaching into the corners of the screen also requires extra physical effort from your finger. This may sound like a small inconvenience, but when you multiply that effort across hundreds of interactions per day, it all adds up.
Why is this actually important to you?
For now, this research benefits designers more than regular users. Until Log2Motion came along, smartphone interaction logs only recorded where a finger touched the screen, without revealing whether that interaction felt pleasant or physically demanding.
Designers can now use this simulation early in the development process to create interfaces that are less tedious to use. The impact on accessibility is also significant. The model can be customized to simulate how users with tremors, limited strength, or prosthetics interact with their phones, helping developers create experiences that work better for everyone.
The researchers also say the model can be scaled to simulate other common scenarios, such as lying on a couch and scrolling with one hand. This feels a little too relatable.
Your phone may not be as passive a device as you thought. Every hit takes something out of you, even if it’s just a little.
