In this post, seventh77 asks: I’ve come across various “organic skin care” blog-type sites that claim propylene glycol “denatures” skin and causes it to age prematurely and sag. Is there any truth to that?I answer the question in the comments in the post, but the short answer is no, there’s no truth to these claims. And...

Thanks for your good thoughts about my math exam! I got an A-, something I didn’t expect as I wrote it while enjoying some serious back and hip flexor pain, a memento of a serious fall I had on a ferry four years ago. I hope to get back to writing more detailed posts on...

I’m doing my final exam for math tonight, so this morning is dedicated to doing last minute revisions to those concepts that have refused to take up residence in my head. I started the class in January, and I can’t remember anything past last week. What’s up with that? I’m stuck on logarithms and exponents...

I love this creamy exfoliating cleanser! I can use it for my oily skin maybe once a month and my best friend with normal skin can use it once a week, but someone with dry skin could use it every day, although I’d make a version without the jojoba beads because you don’t want to...