I have a slight loss of hearing in my right ear, it's like the underwater effect, words are audible but very muffled. In winter or windy days I have to wear a buff as the cold really is painfull, but I always leave my left side uncovered. I tried covering both ears once But felt very nervous, my left ear has become more sensitive it compensates for thr right & I couldn't hear things coming up behind me, or traffic approaching round bends up front as clearly...
We have senses for a reason, we should use them wisely. Those that don't have certain sense learn to live with that, they adapt & can continue doing things minus that sense, but to 'block' one occasionlay will leave you vulnerable, no matter how confident you feel, your body jusy can't cope with loosing something instantly.