Male contraceptive research is plagued by technical challenges, funding hiccups, and sexism. But thanks to persistent scientists and shifting societal norms, the path forward is looking hopeful.
How to Live Longer, Better [Cover Story]
There's something to be said for aging less timidly—as a sort of happy contrarian, arguing when you feel like arguing, playing when you feel like playing. Inside the lives of people who are approaching aging without fear.
How a forgotten 100-year-old treatment called phage therapy is saving lives.
"Where have all the entomologists gone?" How a shortage of bug scientists is putting us at risk
For the first time in the United States, a woman who was born without a uterus gave birth to a baby. After following this clinical trial for over a year, I was able to break the news of this historic birth.
It’s almost impossible to get an abortion in Poland. These women crossed the border to Germany for help.
The Weight Loss Trap: Why Your Diet Isn't Working [Cover Story]
Why no single diet—from low carb to paleo to low fat and vegan—will work for everyone.
Here's the latest trend among personal data enthusiasts.
The weird ways Silicon Valley is trying to cheat death, from young blood transfusions to $25,000 physicals.
How Botox Became the Drug That's Treating Everything [Cover Story]
The weird, wild science behind Botox.
A rise in transplants that improve lives rather than save them is filled with promise and ethical dilemmas. Video: What Life Looks Like After the World’s Most Extensive Face Transplant
Four women received uterus transplants from live donors, only one succeeded.
"I can do absolutely nothing."
What You Need to Know About Zika [Cover Story]
Everything you need to know about the virus, the mosquitoes that carry it, and how to beat it.
I go behind the scenes to a town in Brazil that is using genetic modified mosquitoes to fight Zika.
I traveled to Brazil to report on the spike in cases of babies born with the severe birth defect microcephaly. I was one of the first journalists on the scene.
More Americans are using apps to video chat their doctors for faster care from the privacy of their homes.
New research into energy drink consumption and youth suggests the beverages may not be so benign for young people.
Inspired by his son's condition, a father has invented a bionic pancreas that could transform life with diabetes.
Why the worst outbreak ever is a warning of what could come next.
In a race to cure blindness, three advances come closer to reality.
Why the best form of birth control is the one no one is using.
As part of TIME's annual longevity issue, I covered the new science that shows daily lifestyle choices can help people live better--and longer.
In the Internet age, young kids are exposed to more explicit content.
Evidence is mounting that teenagers should start school a little later. So why aren’t they?
Judy Slater, the first person to undergo deep brain stimulation (DBS) for stroke recovery, is doing far better than doctors expected.