Reporting in Cell Metabolism, researchers write that when people who lead relatively sedentary lives worked out the DNA in their muscle fibers changed almost immediately. Scientists also found caffeine had the same effect on isolated rodent muscles. Study co-author Juleen Zierath discusses the DNA modifications.
It’s been an unusually warm winter in some parts of the country, with springtime temperatures and very little snow. How is nature responding? Purdue entomologist Tom Turpin and horticulturalist Kristin Schleiter of the New York Botanical Garden discuss how an early spring affects flower buds, beetles and bees.
When you crunch into a potato chip or take a spoonful of chocolate mousse what you experience is more than just the taste of the food. In her book Taste What You’re Missing, Barb Stuckey discusses why truly experiencing food involves all five senses and offers tips on how to get more enjoyment from your next meal.
Reporting in Nature, researchers write they have deciphered the genetic code of the gorilla, the last of the great apes to have its genome sequenced. Study co-author Aylwyn Scally discusses what the data reveal about the evolution of humans and other apes.
Experts say health effects from the radiation released by last year’s nuclear disaster will be minimal. But the lasting psychological trauma from the tsunami, including the loss of life and livelihoods, will be an ongoing struggle.
The 56-42 vote came after President Obama called Democratic senators to lobby them to oppose the 1,700-mile Keystone XL pipeline, which would carry tar sands oil from western Canada. Republicans wanted to sidestep Obama’s rejection of the pipeline and allow the project to go forward.
An expedition team used sonar imaging and more than 100,000 photos taken from underwater robots to create the map, which shows where hundreds of objects and pieces of the presumed-unsinkable vessel landed after striking an iceberg, killing more than 1,500 people.
The huge solar storm that NASA detected hurtling toward Earth hit our planet at 5:42 a.m. ET Thursday. So far, there have been no reports of major power or communications disruptions. But it’s not the last you’ll hear about solar storms; the sun’s activity won’t peak until 2013.