It turns out this common phrase might have more of a basis in truth than you thought!

Pregnancy is quite a feat. The embryo manages to develop, get food, and get rid of their waste, all while staying under the radar of their parent’s immune system.

Maybe you've heard that drinking beer while breastfeeding is helpful? There seems to be conflicting findings, so check out this episode to dive into the research!

Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development & function.

Paul Andersen explains how epinephrine is responsible for changes in chemistry of our body associated with the fight or flight response. Epinephrine released by the adrenal medulla are received by a number of organs associated with the...

Paul Andersen explains how organisms regulate their internal osmolarity or not. He starts with a brief description of osmosis and why it is important for animal cell to be surrounded by an isotonic solution. He then explains how...

Infertility affects 1 in 8 couples worldwide. But in the last 40 years, more than 5 million babies have been born using in vitro fertilization (IVF). How does it work? Nassim Assefi and Brian A. Levine detail the science behind making a...

At this moment, three hundred million women across the planet are experiencing the same thing: a period. The monthly menstrual cycle that gives rise to the period is a reality that most women on Earth will go through in their lives. But...

Flowers tend not to own calendars, so how do they know when to bloom?

You probably know that losing weight is really hard. But it may not be just because of your cheat day frequency; your body actually fights back to make losing weight harder.

Over our lifetimes, our bodies undergo a series of extraordinary metamorphoses: we grow, experience puberty, and many of us reproduce. Behind the scenes, the endocrine system works constantly to orchestrate these changes. Emma Bryce...

It's common knowledge: you drink a lot of coffee, you're definitely going to poop. What isn't common knowledge is why your body reacts that way

Bones, you probably have them and they're for more than holding your body upright.

You've heard about them, but do you how they work? Or why they suck? Hank explains the science behind performance enhancers, including steroids, blood doping, and that stuff supposedly made out of deer antlers. You'll never look at...

Which came first: the stress or the pimples? The physical reactions to stress can cause major breakouts, which, in turn, can be even more stressful! Claudia Aguirre gives just one more reason to get that stress under control.

Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of...

In the second half of our look at the endocrine system, Hank discusses chemical homeostasis and hormone cascades. Specifically, he looks at the hypothalamus-pituitary-thyroid axis, or HPT axis, and all the ways your body can suffer...

Howcast - Learn how much sleep you should get when taking supplements from registered dietician Glen Tobias in this Howcast video.

Howcast - Learn about the medical ways to induce labor from childbirth expert Elizabeth Mangum-Sarach in this Howcast video.

Howcast - Learn what no on tells you about giving birth from childbirth educator Elizabeth Mangum-Sarach in this Howcast video.

Howcast - Learn about adult acne versus adolescent acne from dermatologist Cybele Fishman, MD in this Howcast skin care video.

Howcast - Learn how sleep affects weight in this Howcast video about obesity.

Howcast - Learn how hormones affect fertility in this Howcast video about infertility.

Howcast - Learn what an AMH level is, how it affects fertility, and how you can get your level tested in this Howcast video about infertility.