Here’s the dirty secret about hearing aids. I have mild but measurable hearing loss, and I love the benefit that high-quality hearing aids provide me. But I don’t often wear hearing aids in my daily life when I'm not testing products, for the same reasons as everyone else. As a result, I tend to wear hearing aids for short periods—only when I know I'll need them. Photograph: Chris NullThe negative hearing aid experience is compounded because I wear glasses.