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Leaving a phone to charge all day long? Probably best to avoid it.

Discover the truth behind some of the biggest smartphone battery myths, like whether charging your phone fully—or overnight—is actually as bad as some tech experts suggest.

Chris Wheatley








They're not just for show.

Discover more about the origins of toenails—plus the real reasons why your toenails may be getting thicker and changing colors.

Matt Hoffman








Happy 2025!

Every time a new year rolls around, people set out to better themselves. But why do we make these promises to ourselves, and where did this tradition come from? We can start by blaming the ancient Babylonians.

Shanna Yehlen






Body fat is not just something to get rid of. It plays important roles in the human body, from regulating metabolism to storing energy.

Jordan Rosenfeld


Let’s celebrate another year in the books with a look back at how our knowledge grew over the past 12 months.

mentalfloss .com, Stacy Conradt