Nobody has shown an effective, reversible contraception for men. Using on-the-market meds, that goal has now been reached. More
Personal and community health
California’s drought: Blame it on soaring demand for water
Rains will return, but California's drought is permanent. More conservation is the only escape. More
Sleep: It can enhance memories!
When sounds accompanying bias-reduction training are replayed during sleep, the anti-bias effect is longer, stronger. More
Drought + food = instability?
As California parches, we look at drought in the "Arab Spring" and China's Great Leap Forward. How are drought and famine related? More
Dogs and their owners: A chemical bond
Why do we love dogs so much? The answer may arise from the reason they love us so much. It's all in the hormones. Honest! More
Eight ways microbes keep you healthy
Your microbiome affects obesity, infection, asthma. Does the immune system "farm" bacteria? Do bacteria train the immune system? More
Danger: Life without vaccine
Vaccines. Gene-modified food. Climate. We're awash in science skeptics. Is this an anti-science mood, or something more complicated? More
In 10 languages, happy words beat sad ones
If you rate the most common words in 10 major languages, you’ll see people tend to use positive words — around the globe. Surprised? More
Stem cell advance
Stem-cell therapy is inching ahead. The study did not prove that it works, but other trials are started up. What took so long? More
Ebola on the march!
It’s “classic dogma”: Bad bacteria and viruses grow less dangerous over time. Not always! More
Smokin’ hot! Altered tobacco plants point toward race-car photosynthesis
Photosynthesis — creation of sugar from carbon dioxide with solar power — is the basis of life on Earth. Could photosynthesis become More
Population rising with no end in sight!
World population will reach 9.6 to 12.3 billion by 2100, says a new projection. Instead of relying on expert opinions, the study extrap More
Seeds of dilemma: Who owns the genes that fill the stomach?
Some seed corn is covered by 30 patents. Three firms dominate corn and soybean seed producers, and patents are moving faster into More
Ebola’s end: History’s lessons
As Ebola ravages West Africa, we seek answers in past epidemics. How did cholera, plague, smallpox end? Lacking drugs or a vaccine, how More
Meet the mosquito: Annoying, deadly
Malaria is declining slowly, but skeeters carry other diseases, including dengue and West Nile. How do mosquitoes reproduce? What are More