Weren't you people taught to do this?
Hi, just found out this subreddit exists so I just wanted to share my experience.
I live in a very mountainous region and my family has some pineries (as in pine wood) here. Since I was little I've been "helping" my father check if the trees were in good shape. That meant a lot of going up and down mountains, so, my ears would get clogged due to air pressure changes.
I vividly remember my father saying: "Just try raising both your brows real hard while you push your cheeks up. You will hear a rumbling in your ears and that will unclog them."
Basically I "learnt" how to do the rumbling thingy. I've always thought it is something you learn, like whistling.
However now I'm reading people can't do it?
Did you guys learn to do it or did you discover your could do it?