Exercising and improving physical fitness consistently rank as the top New Year’s resolution among U.S. adults. Here's what ...

Fast. Responsive. Seamless. And finally, on sale for less than the Apple Watch Ultra. See Also After a month of wearing an ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

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