I have noticed that it's mostly females who will give up their phones for a day while most males are saying they will choose a day without food, you girls love food a lot 😅. I'm addicted to my phone but I will definitely choose a day without it, I can't even press my phone when I'm very hungry. There are indeed a lot of negative side effects on going a day without food but I don't see any side effects of nothing using my phone for a day, and just like you said there are even some benefits like limited screen times and less radiation