Explorers and scientists have been looking for the fountain of youth for thousands of years. Now there’s speculation they may have found an aging inhibitor in a generic HIV drug called Lamivudine. A study in the journal Nature shows that mice who are equivalent to 75 years old in human terms experienced dramatically reduced inflammation and other signs of aging when they received the drug. Lamivudine was approved for treating HIV in 1995. Scientists say they’re anxious to start human anti-aging trials.
Speed limits on highways are usually set as a result of engineering studies. But some local governments override those recommendations, believing that the lower the limit is, the safer the road will be. A new study in the journal Accident Analysis and Prevention shows that’s only partially true. Crashes are reduced when a speed limit is set five miles per hour lower than recommendations… but setting the speed limit 10, 15, or 25 miles per hour lower actually increases both total crashes and fatal crashes because so many drivers completely ignore the limit.
And finally… educators have long sought ways to get girls more interested in science. Now a study in the journal Psychological Science has some tips. The study shows that suggesting “let’s do science” is much more effective at getting girls engaged than suggesting “let’s be scientists.” Researchers say pervasive stereotypes, even among the young, torpedo the idea that very many girls ever do become scientists.
In the near future, cars will be able to provide data as well as receive it, and a variety of methods are being researched to tap into this. Experts explain how cars can communicate with roads, traffic signals and central computers, and how roads themselves may collect data on the cars they carry. In the future, autonomous cars may use these links to greatly speed travel and make it much safer.
Andrew Bremer, Managing Director of Local Affairs, Drive Ohio
Tim Sylvester, Founder and CEO, Integrated Roadways Co.
American lifespans have declined for the third year in a row… the first time that’s happened since World War I. A report from the Federal Centers for Disease Control and Preventions finds that a baby boy born today in the United States can expect to live to 76… while the average baby girl can expect a lifespan of 81 years. Researchers blame opioid overdoses… flu deaths… Alzheimer’s disease and suicides for the decline in the American lifespan.
Some women want to have their children as close together as possible, but a new study shows that it’s wise to wait at least a year to get pregnant again. The study in the journal JAMA Internal Medicine finds that waiting a year between the birth of one child and conception of another lowers complications. Women older than 35 have a lower risk of death when they wait … and for mothers under 35, there’s a lower risk for the baby when children aren’t so close together.
And finally… if your desk is a mess, your co-workers probably make negative assumptions about you. A study in the journal Personality and Individual Differences finds that a messy office leads people to think its occupant is more cranky, careless, neurotic and less conscientious than people who have a neater space. Researchers say the finding applies to virtually any personal space.
Most people think of military science in terms of defeating the forces of the other side. But it also involves keeping our troops sheltered, clothed and fed, as well as protected from adversaries like exhaustion, infection, heat and noise. A noted investigative journalist explains the less well known side of military research.