In Today’s Health newsletter: Science agrees that omega-3s are good for you. But how effective are omega-3 supplements? Plus, how to increase your pain tolerance and a Japanese delicacy that promises a longer life.

PHOTOGRAPH BY MIRAGEC, GETTY IMAGES

Omega-3 fatty acids, or omega-3s, can be among the most important parts of a well-balanced diet, providing a wide variety of health benefits like helping to reduce inflammation and lower cardiovascular disease. Yet most people aren't getting enough, and many are taking fish oil supplements to increase their intake. 

 Science has proven again and again that omega-3s are certainly good for you. But with more people taking them, are the actual supplements all they’ve cracked up to be?

Related: 

— What foods you really need to eat to reduce inflammation 

— 5 things you should know before trusting that supplement 

PHOTOGRAPH  BY MICHAEL KIRBY SMITH, THE NEW YORK TIMES/REDUX

Most humans go great lengths to avoid feeling pain—but some, like magician David Blaine (pictured above), dedicate their lives to conquering the sensation. While most aren't juggling fire or diving nearly naked into freezing lakes, many people are doing something just as challenging: finding ways to cope. Here are ways you can better conquer your pain. 

David Blaine Do Not Attempt is now streaming on Disney+ and Hulu. 

Related:

— Scientists are unraveling the mysteries of pain 

— Painkillers don’t work as well for women. Here’s why. 

PHOTOGRAPH BY SCIENCE SOURCE

PHOTOGRAPH BY TANJA IVANOVA, GETTY IMAGES

You may have heard some talk online about fiber. How much do we need? What do we need it for? Can it reduce your risk of colon cancer? Here's why fiber is such a powerhouse nutrient and how it keeps your body running—plus how much you really need to stay healthy.

Today’s newsletter was edited and curated by Jennifer Baik and produced by Amanda Williams-Bryant. Thanks for reading! Have a suggestion? Let us know.