Exercise Pill Could Simulate Physical Activity at the Cellular Level
Taking a pill could one day replicate many beneficial effects of exercising, according to a pair of studies that successfully simulated physical workouts at the cellular level.
What's the Latest Development?
Taking a pill could one day replicate many beneficial effects of exercising, according to a pair of studies that successfully simulated physical workouts at the cellular level. One study found that a special compound of chemicals injected into obese mice "increased activation of a protein called REV-ERB, which is known to partially control animals’ circadian rhythms and internal biological clocks." Even mice on a high-fat diet lost weight and improved their cholesterol count as a result of the injections. They also started using oxygen better and expended about five percent more energy than untreated mice.
What's the Big Idea?
A different study hoped to confirm a previous experiment that found that resveratrol, the chemical found abundantly in grape skins and red wine, can increase the creation of new mitochondria in isolated muscle cells, mimicking aerobic exercise. Contrary to the prior experiment, the study found that only in doses high enough to be toxic did resveratrol promote mitochondrial function. Dr. Thomas Burris of the St. Louis University School of Medicine reminds readers that "the fundamental aim of his and similar research is to aid those who can’t exercise, not those who decline to, and even the beneficiaries inevitably will be short-changed."
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How a cataclysm worse than what killed the dinosaurs destroyed 90 percent of all life on Earth.
While the demise of the dinosaurs gets more attention as far as mass extinctions go, an even more disastrous event called "the Great Dying” or the “End-Permian Extinction” happened on Earth prior to that. Now scientists discovered how this cataclysm, which took place about 250 million years ago, managed to kill off more than 90 percent of all life on the planet.
A new study discovers the “liking gap” — the difference between how we view others we’re meeting for the first time, and the way we think they’re seeing us.
We tend to be defensive socially. When we meet new people, we’re often concerned with how we’re coming off. Our anxiety causes us to be so concerned with the impression we’re creating that we fail to notice that the same is true of the other person as well. A new study led by Erica J. Boothby, published on September 5 in Psychological Science, reveals how people tend to like us more in first encounters than we’d ever suspect.
Using advanced laser technology, scientists at NASA will track global changes in ice with greater accuracy.
Leaving from Vandenberg Air Force base in California this coming Saturday, at 8:46 a.m. ET, the Ice, Cloud, and Land Elevation Satellite-2 — or, the "ICESat-2" — is perched atop a United Launch Alliance Delta II rocket, and when it assumes its orbit, it will study ice layers at Earth's poles, using its only payload, the Advance Topographic Laser Altimeter System (ATLAS).
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