Protective footwear started nearly 30,000 years ago, research finds

Erik Trinkaus / Czech Academy of SciencesA 26,000 year-old early modern human showing the reduced strength of the bones of the lesser toes.Those high-tech, air-filled, light-as-a-feather sneakers on your feet are a far cry from the leather slabs our ancestors wore for protection and support. But believe it or not, our modern day Nikes and Reeboks are direct descendents of the first supportive footwear that new research suggests came into use in western Eurasia between 26,000 and 30,000 years ago.

Memory study shows brain function in schizophrenia can improve

Deanna Barch (center) discusses brain imaging techniques used in the experiment, which used the functional magnetic resonance imaging (fMRI) machine (shown at right).When encouraged to use memorization strategies commonly employed by healthy individuals, people with schizophrenia can be helped to remember information just as well as their healthy counterparts, a process that in itself seems to spur a normalization of memory-related activities in the brains of people with schizophrenia, suggests new research from Washington University in St. Louis.

Low heart rate variability in depressed patients contributes to high mortality after heart attack

Abnormal heart rate variability increases the risk of death for depressed heart patients.Scientists have known for years that depression increases the risk of dying in the months after a heart attack, but they haven’t understood how depression raises that risk. Now, behavioral medicine specialists at Washington University School of Medicine in St. Louis are reporting in the Archives of Internal Medicine that abnormal heart rate variability is partially responsible for depression’s effects in heart patients.
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