In today’s newsletter, how much protein is enough, why some people hate cilantro, and what happens during menopause. 

But first: Do crossword puzzles help your brain?  

PHOTOGRAPH BY JOEL SARTORE, NAT GEO IMAGE COLLECTION

Crossword puzzles have long been seen as “workouts” for the brain. Alongside Sudoku and word searches, crosswords come to mind when thinking of ways to stay mentally sharp as you age. Now, new research reveals what exactly puzzles can—and can’t—do for your brain.

More stories for your mind:
— 9 simple ways to boost your mental health, according to science
— What exactly is brain fog?

PHOTOGRAPH BY DEB LINDSEY, THE WASHINGTON POST/GETTY IMAGES

Interest in eating more protein has been growing. An important part of a balanced diet, many are turning to protein to buff up, lose weight, or simply improve their health. If you're looking to up your protein intake, here are some things you're probably wondering: How much protein do you need? What are the best ways to get it? And can you have too much?

Related:
— Don’t overlook this nutritional powerhouse
— The secret to a healthy gut is simpler than you think

PHOTOGRAPH BY REBECCA HALE, NAT GEO IMAGE COLLECTION

PHOTOGRAPH BY ELIZABETH DALZIEL

Despite uncomfortable symptoms like hot flashes, mood changes, and trouble sleeping, menopause and the discussions around it have long been shrouded in secrecy. Here's what these experts have to say about the latest science and the best ways to cope.

BEFORE YOU GO: How stressed are you? Answer these 10 questions to find out.

Today’s newsletter was edited and curated by Jennifer Baik and produced by Alisher Egamov. Did someone forward this to you? Sign up here to get this newsletter and more.