Eyes :: Eye implants in cats to help humans see

In “Star Trek: The Next Generation,” Geordi La Forge is a blind character who can see through the assistance of special implants in his eyes. While the Star Trek character “lives” in the 24th century, people living in the 21st century may not have to wait that long for the illuminating technology.

Caffeine :: Caffeine cuts post-workout pain by nearly 50 percent

Although it’s too soon to recommend dropping by Starbucks before hitting the gym, a new study suggests that caffeine can help reduce the post-workout soreness that discourages some people from exercising. In a study to be published in the February issue of The Journal of Pain, a team of University of Georgia researchers finds that moderate doses of caffeine, roughly equivalent to two cups of coffee, cut post-workout muscle pain by up to 48 percent in a small sample of volunteers.

Cancer :: Study supports a stem cell origin of cancer

Researchers at the University of Southern California (USC) recently made significant strides toward settling a decades-old debate centering on the role played by stem cells in cancer development. According to the study’s findings, which appear in an upcoming issue of Nature Genetics and now available online, genes that are reversibly repressed in embryonic stem cells are over-represented among genes that are permanently silenced in cancers; this link lends support to the increasingly discussed theory that cancer is rooted in small populations of stem cells.

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