I can 'flex' my Eustachian tubes and 'open them' at will, e.g. equalising pressure when ears need 'popping' on planes. I'm sure it isn't that uncommon but no one ever knows what I mean when I say it.
I only recently discovered that not everyone can do this. I was telling my teenager to "just pop your ears" when she was swimming under water and neither her nor her mom had any idea what I was talking about.
This is called the tensor timpani and I just learned from my hypermobilty support group that it's super common in people with hypermobilty disorders generally to be able to move them. Look up Beighton scale and give yourself a quick check.
Finding out I was hypermobile lead to me discovering my ADHD wasn't inattention, but highly variable blood pressure and a wonky vagal nerve condition. Changed my meds, changed my life.
imho Belize is the best place for a scuba vacation. I went last year. Former British colony where everyone speaks English and you can spend American dollars easily. It sits next to the second biggest coral system on Earth so you have abundant wildlife.
Yeah but I feel like most adults would have had pressure sensitive ears at some point in the life (like from a cold or something), forcing them to learn about popping ears, even if the only way of doing it they know is swallowing.