Tangled Tresses

You think you’re having a bad hair day? Ach du lieber! This is Sandra Tsing Loh with the Loh Down on Science. The Germans call it Struwwelpeter or “Shockhead Peter.” It affects people with dry, frizzy blonde hair. Those who have it comb and brush, spray and spritz, but nothing

Stimulating Scents

Gee, your hair smells terrific! This is Sandra Tsing Loh with the Loh Down on Science. When we smell, odor molecules dock into special proteins that alert our brain. Mmmm…bacon! Biologists call these proteins olfactory receptors, or O-Rs, and they do more than just smell! All kinds of cells use

Hair Today, Gone Tomorrow

Got thinning hair? Now we know why! This is Sandra Tsing Loh with the Loh Down on Science. All types of mammals experience hair thinning as they age. Ugh. In both sexes, it’s thought to be caused by shrinking hair follicles. But stem-cell biologists in Japan weren’t content with shrinkage