Versions sold that way are based on older formulas, and make tight control of blood sugar harder. But they are cheaper and might save the life of a diabetic patient whose alternative is to go without.
Some of the biggest names in science fiction right now — like The Martian author Andy Weir — are writing what's called hard sci-fi, based on real-world science and a vision of hope for the future.
Tsar Alexander III's remains have been exhumed for DNA tests to confirm the identity of two grandchildren. Historians say the Russian Orthodox Church wants to reaffirm its ties to the imperial family.
There was cheering when nearly 200 countries reached an historic agreement to stem global warming. But the frantic deal making says something about what it may take to carry the agreement out.
The draft sets the goal of limiting the world's average temperature rise to "well below 2 degrees Celsius above preindustrial levels," with an attempt to cap it at 1.5 degrees.
The U.N. climate conference in Paris was supposed to end Friday, but negotiators have extended it for at least another day. NPR has the latest from Paris.
Armed with a Ph.D from Columbia University, Ousmane Ndiaye wants to tell farmers when the rain will (and won't) fall. But he's the first to say he's not always right.
Bartenders are finding novel ways to reuse leftover wine and spent ingredients from cocktail-making. It's just one part of a nascent movement toward sustainability in the industry.
Producers of poultry, cattle and pigs continue to use more antibiotics, according to the latest government data. That's despite more pledges from food companies to sell meat raised without the drugs.
A comparison of common treatments for early-stage breast cancer finds lumpectomy with radiation is essentially equal to breast removal in terms of recurrence and survival, with fewer complications.
Codeine can trigger rare, but life-threatening, breathing problems in kids. Food and Drug Administration advisers want to more tightly restrict the drug's use by anyone under 18.
A recent study finds that being happy doesn't always mean living longer.
When bodies decompose, the types of bacteria on and around the body change in predictable ways. These patterns can be used to estimate time of death, a crucial clue in solving murders.
Two new studies of the dwarf planet might make it harder for people to imagine Ceres as a space colony or way station for an advanced race.
While in vitro fertilization has been successfully used in many species (including humans) for decades, scientists have never managed to use the procedure with dogs — until this summer.
Some people who don't have celiac disease say they feel better on a gluten-free diet. Researchers have long been puzzled as to why. A study suggests it could be because of a protein called zonulin.
Jimmy Carter seems to have gotten the perfect drug to treat his cancer. But scientists need to understand a lot more about tumors before personalized cancer treatments are available for everyone.
At the U.N. climate summit in Paris, negotiators have 48 hours until their deadline to reach a deal on global warning. NPR has the latest from the summit.
The National Park Service is weighing a Texas company's proposal to do seismic oil testing in the Big Cypress National Preserve. But some worry it will open the door for fracking in the Everglades.
Tompkins created The North Face and co-founded Esprit, but abandoned the business world to devote himself to environmental causes. He was 72.