An increasing number of doctors and other health experts have been encouraging older adults to rise from their recliners and go for a walk, a bike ride, a swim, or engage in just about any other form of physical activity as a defense against the potentially harmful health consequences of a sedentary lifestyle.
"Exercise is touted as a panacea for older adults," said Jeffrey Woods, a kinesiology professor at the University of Illinois at Urbana-Champaign, who noted that fitness programs are routinely recommended for people with various health problems -- from diabetes to heart disease.
Health experts generally recognize that this population benefits from physical fitness, he said. What they dont know is why exercise appears to have certain preventive and restorative health effects. Also unknown is what -- if any -- relationship exists between exercise and immune functioning.
Melissa Mitchell | EurekAlert!
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For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
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