What happens when a person wants to have a baby, but after years of trying, it just doesn’t happen? A lot of people want to become pregnant, but let’s learn about what may prevent pregnancy.

A lot of illnesses, like colds, have very visible symptoms, but other conditions are not so obvious. Learn about how people spot and treat a condition called endometriosis.

Our biological sex is mainly controlled by our sex chromosomes. But sex hormones also influence what body parts and characteristics we have.

Periods are a natural, normal part of life, and many people around the world experience them. So let’s talk about why and how they happen.

Almost all life forms start out as small cells, but how do they grow into entire animals? Read about the first step here: when cells in an embryo form germ layers that give rise to every organ and tissue in the body.

Every so often, cicadas rise up from their quiet underground burrows to “sing” their best ballads. Aside from their sound, what do you know about the patient, musical lifestyle of these insects?

How well does social distancing work to control a global pandemic? With people’s lives turned upside-down due to COVID-19, many have been left to wonder if social distancing is worth it.

Cancer, damaged DNA, COVID-19... our bodies deal with diseases and damage all the time, and finding that damage as early as possible can be helpful to fighting it. Joshua LaBaer has dedicated his career to solving health puzzles, and learning how to detect diseases earlier than ever before.

As our climate changes, wildfires seem to become more and more damaging. But are wildfires automatically bad? And how can we learn to live with a future filled with fire? Also in: Français

Instead of giving birth to a child, bacteria divide in half when they grow old, creating two new bacteria cells. But bacteria become damaged as they age just like humans do, so where does all this damage go?