Men are now joining women in obsessing over trimester zero, a coinage referring to the months leading up to conception. As sperm health becomes a cultural fixation, wellness brands are fueling the demand by swarming the market with products such as male-fertility supplements and sperm-testing kits.

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“Make America Healthy Again” influencers such as Jessica Reed Kraus helped Health Secretary Robert F. Kennedy Jr. land his role. Reporter Eliza Collins attended a mocktail night hosted by Kraus—watch our video to hear MAHA moms talk politics and policy and assess RFK Jr.’s first year in office.

Nicole Nguyen let Claude and Perplexity access her health data to search for hidden patterns in her personal metrics, and better understand her risks. After lots of prompting, these were the top chatbots in several scenarios.

U.S. fertility rates hit record lows in 2025 as childbearing continued to shift toward older women, according to new federal data. Here’s what’s driving the slide.

Genes may predict how much you’ll lose on a weight-loss drug. Research from 23andMe showed that people with a common gene variant lost more weight on GLP-1 drugs than those without it.

GSK withdrew its application for a drug President Trump touted as a potential autism treatment, months after submitting it at health officials’ request. The FDA had just approved leucovorin calcium last month, and generic forms of it will stay available.

Eli Lilly’s Foundayo weight-loss pill is now available in the U.S. following the FDA’s approval earlier this month, the company said. Foundayo is Eli Lilly’s attempt to counter Novo Nordisk’s successful launch of a pill version of its Wegovy drug.

The approximate annual cost of insuring the health of a family in America, where citizens spend more on healthcare than anywhere else in the world. The main cause: Prices are far higher in the U.S. for the same medical products and services. These charts show why the U.S. spends so much on healthcare.

• Vegetative patients may be more aware than we knew. (The New York Times)

• This detox may erase 10 years of social media brain damage, researchers say. (The Washington Post)

• Scientists are finally unlocking a cancer treatment’s full potential. (The Atlantic)

The Health newsletter is your weekly guide to all the news that affects your health and well-being. This edition was curated and edited by Conor Grant—send him feedback or questions at conor.grant@wsj.com (if you’re reading this in your inbox, you can just hit reply). Got a tip for us? Here’s how to submit.