ただし押し込む瞬間気圧の変化のせいでしょうか、耳がツンとするのが難点です。

tbd

However, maybe from the sudden change in pressure when you push them in, having your ears pop is a problem.

飛行機でお酒飲むと、気圧のせいか酔いやすい。

tbd

Maybe it's the low air pressure that means you get drunk more easily on planes.