As skin ages, it slowly loses its ability to renew and protect. The outermost layer, called the epidermis, becomes thinner.

It is illegal to do a DNA test in Israel. Rating: False (About this rating?) Context: While genetic testing is not outright ...

Abstract: DNA microarray technology enables the simultaneous measurement of expression levels of thousands of genes, thereby facilitating the understanding of the molecular mechanisms underlying ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In 1957, just four years after Francis Crick and other scientists solved the riddle of ...