Adults have the freedom to do what they want, and that includes sometimes making questionable choices about their hygiene. And while you might never know how many times your neighbor showers or cleans his fingernails, the questionable personal hygiene habits of celebrities are a different story — in fact, they sometimes are the story.

Take the self-care habits of Matthew McConaughey, for example. Now in his 50s, he's completely open (and has been since at least the early 2000s) about a couple of surprising (albeit not necessarily completely bizarre) choices he makes for his lifestyle and body.

The first is his aversion to wearing any deodorant. According to previous interviews he's given, McConaughey has spent more than 40 years avoiding deodorant and antiperspirant products. In an int

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