Hair

23 SEP 2018 Contrary to what many advertised drug tests might promise, not all substances leave their telltale chemical signature in the body for the same amount of time. The moment we take a drug – whether we snort, smoke, or swallow it – our bodies begin to break it …

19 SEP 2018 We tend to imagine smells as things that just float around us in the air, but there’s more to it than that. What we perceive as smell is actually an intersection between molecules called odorants (or aroma compounds) and olfactory receptors that are expressed by cells in our body, which send …

27 JUN 2018 You’ve probably wondered how often you need to wash that (sometimes greasy, sometimes not) hair of yours. The question is a vexing one. It’s so common, in fact, that it’s the third suggestion that pops up when typing “how often” into Google (following queries about showering and pooping). …

23 MAR 2018 At some point, most of us are going to experience hair loss. In the United States, roughly half of all men (and women, too) will start showing signs of baldness by their 40th birthday, according to the Cleveland Clinic. Even though modern folklore, and even some limited scientific studies, have …