Our bodies need protein to maintain muscle. That's important because muscle mass peaks in our 30s and then declines. In this episode, tips about understanding how much protein you really need. Learn more about sponsor message choices: <a href="https://podcastchoices.com/adchoices">podcastchoices.com/adchoices</a> <a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

Everyone needs a little help being a human. From sleep to saving money to parenting and more, host Marielle Segarra talks to experts to get the best advice out there. Life Kit is here to help you get it together. Want another life hack? Try Life Kit+. Your subscription supports the show and unlocks an exclusive sponsor-free feed. Learn more at plus.npr.org/lifekit

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