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Adult Stem Cells Lead Health Progress

51; Adult stem cells (AS) and induced pluripotent stem cells from adult tissues (iPS) continue to rack up tallies over embryonic stem cells (ESA).  Do we really need the embryonic variety?  Some continue to say yes, even though the practice of harvesting human embryos creates serious ethical questions for many. Controlling fate:  If you’d rather […]

Sunshine Is for Health

51; The old wisdom: stay out of the sun.  The new wisdom: your life could depend on getting sunshine: about 10-15 minutes of exposure three times a week.     Science Daily reported that Vitamin D, produced in the skin by exposure to sunlight, provides more health to the body than previously thought.  Health professionals […]

Vestigial Organs Have a Function: to Smear Creationism

51; Are there body parts you could live without?  Sure; people get by without fingers, teeth, legs, or even brains (figuratively speaking).  Some people think this is proof of evolution.  New Scientist, rather than showing how new organs and structures could arise by mutation and natural selection, listed “five things humans no longer need” as […]

Large Individual Differences Seen in Human Genome

What makes each individual unique?  Nature1 reported a surprising thing about “the” human genome that is becoming apparent as more individuals’ genes are examined.  The first part is not surprising; the last part is: When the finished sequence of the human genome was unveiled last year, biologists said that it told a story of harmony […]

Teeth Resist Cracking

51; Here’s a story to share with your dentist.  You can crack a tooth, but it takes a lot of force.  This should be surprising, since tooth enamel is as brittle as glass.  The way the enamel develops, researchers found, absorbs excess energy and gives your teeth an extraordinary crack resistance.     “Human enamel […]

A Bad Kind of Sexual Selection

51; Darwin taught a kind of sexual selection that presumed mate choice can lead to extravagant sexual differences.  There is a kind of sexual selection going on among humans that is by intelligent design – with bad consequences.  In this case, the selections are not being made by potential mates, but by parents.     […]

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