I bet you can remember the first time you discovered Poo Pourri. A small spray bottle that promises to erase bathroom scents with just a few pre-business spritzes? It's a dream come true! But flash ...

Add Yahoo as a preferred source to see more of our stories on Google. Your small intestine is lined with tiny protrusions called villi that play a big role in digestion. Sebastian Kaulitzki/Science ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Look, sometimes you ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Much of the food you eat is absorbed by your digestive system, which includes your ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Much of the food you eat is absorbed by your ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Brian Robert Boulay, University of Illinois Chicago (THE CONVERSATION) Advertisement ...