Я не очень понял там методологию исследования. Оно «увеличивает ускорение головы» но не приводит к травмам?

In general, the heavier the object is the harder the impact is. So 400 grams more on the head, “bigger” impact. But everything is liquid in this story. Depends on the high, the speed , the force, the angle etc

Well, the paper is not on how it feels 🤓 it's on real injuries

That’s true actually. If you ask me, any protection is a protection 🤷‍♂️

Well I wrote it for @afgromov mostly.

'I have a friend who had a friend who survived a car crash thanks to not wearing a seat belt. He just came through the windshield'