Practicing hatha yoga three times a week for eight weeks improved sedentary older adults’ performance on cognitive tasks that are relevant to everyday life, researchers report. The findings involved 108 adults between the ages of 55 and 79 years of age, 61 of whom attended hatha yoga classes. The others met for the same number and length of sessions and engaged in stretching and toning exercises instead of yoga.
Elite athletes down sports drink to help them reach new heights of performance. But for the average young person, these "health drinks" may cause them to reach new highs— on the bathroom scale.
Ebola-affected countries should immediately begin exit screening all passengers leaving international airports, sea ports and major ground crossings, the U.N. health agency has said. The agency didn't spell out which countries should start screening passengers, but noted that the Ebola outbreak involves transmission in Guinea, Liberia, Sierra Leona and a small number of people in Nigeria.
By zapping the air with a pair of powerful laser bursts, researchers have created highly focused pathways that can channel electricity through the atmosphere. The technique can potentially direct an electrical discharge up to 33 feet away or more, shattering previous distance records for transmitting electricity through air.
Under the right scenario, exporting U.S. coal to power plants in South Korea could lead to a 21 percent drop in greenhouse gas emissions compared to burning the fossil fuel at plants in the U.S. Despite the large amount of emissions produced by shipping the coal, total emissions would drop because of the superior energy efficiency of South Korea’s newer coal-fired power plants.
The Obama administration has concluded it will not publicly disclose federal records that could shed light on the security of the government's health care website because doing so could potentially allow hackers to break in.
Man-made earthquakes, a side effect of some high-tech energy drilling, cause less shaking and in general are about 16 times weaker than natural earthquakes with the same magnitude.
Scientists have created an artificial, network-like cell system that is capable of reproducing the dynamic behavior of protein synthesis. This achievement is not only likely to help gain a deeper understanding of basic biological processes, but it may pave the way toward controlling the synthesis of both naturally occurring and synthetic proteins for a host of uses.
While the powerful solvents known as ionic liquids show great promise for liberating fermentable sugars from lignocellulose and improving the economics of advanced biofuels, an even more promising candidate is on the horizon— bionic liquids.
Iceland has raised its alert level for the risk of a possible volcanic eruption to orange— the second-most severe level. The warning comes amid swarms of earthquakes that have taken place since Saturday in Bardabunga— a subglacial stratovolcano located under Iceland's largest glacier.
By finding a way to bind a slippery molecule naturally found in the fluid that surrounds healthy joints, researchers have engineered surfaces that have the potential to deliver long-lasting lubrication at specific spots throughout the body. The finding could eventually offer a new way to ease the pain of arthritic joints, keep artificial joints working smoothly or even make contact lenses more comfortable.
Physicists have developed new technology to study atomic vibration in small particles, revealing a more accurate picture of the structure of atomic clusters where surface atoms vibrate more intensively than internal atoms.
The Obama administration has said it is taking a first step toward requiring that future cars and light trucks be equipped with technology that enables them to warn each other of potential danger in time to avoid collisions.
Spacewalking astronauts launched a tiny Peruvian research satellite Monday, setting it loose on a mission to observe Earth. Russian Oleg Artemiev cast the four-inch box off with his gloved right hand from the ISS. The nanosatellite gently tumbled as it cleared the vicinity of the orbiting complex, precisely as planned.
At a time when Americans are playing closer attention to what they eat, McDonald’s is trying to sway public opinion by reaching out to reporters, bloggers and other so-called "influencers" who write and speak about the restaurant.