Author

Heather Zavala

A Vanderbilt University nursing graduate, Heather Zavala, RN, CPN, works as a school nurse at a public elementary school in Manhattan, Kansas. She previously cared for hospitalized pediatric patients. Her daily clinic hours involve treating minor playground scrapes, managing student medications, and fielding children’s questions about how their bodies function.

Why Is My Belly Button Getting Smaller?
Why Do I Get Goosebumps When I’m Hot?
Can Your Nose Shrink Naturally? The Science Explained
Can You Lose Your Belly Button? And Why It Happens
Why Are My Fingers Salty? The Science Explained
What Do Goosebumps Do? Purpose, Triggers, and More
Why Do I Keep Getting Goosebumps? Reasons Explained
Why Do I Have a Crease on the Back of My Head?
What Is the Hair Matrix and What Does It Do?
Why Do I Have a Line Below My Belly Button?
What Is the Hair Medulla? Its Function and Patterns
Why Do the Hairs on My Arm Stand Up?
Why Does Hair Turn Grey at the Temples First?
What Is a Hair Whorl? The Science Behind Your Hair Pattern
What Makes You Sweat? Common Causes Explained
What Is Lanugo Hair? In Fetuses, Newborns, and Adults
What Is a Nail? Anatomy, Function, and Growth
Why Do Cuticles Grow: What Your Body Is Doing
How Many Layers of Skin Does a Tattoo Needle Go Through?
How Does the Skin of Your Palm Differ From the Back of Your Hand?
Why Do Piercings Hurt? The Science of Pain
What Do Dimples Look Like Under the Skin?
What Is the Lunule and What Does It Indicate?
Why Do My Lips Stick Out? Causes of Lip Protrusion
Why Are My Fingers Pruning So Fast?
What Causes an Upper Lip Dimple When Smiling?
Why Is My Cheek Temperature Higher Than My Forehead?
Why Do I Have a Hole in My Cheek?
When Does Female Body Hair Stop Growing?
Why Isn’t My Sweat Salty?