Why Don't Your Eyelashes Grow?: Curious Questions Kids Ask About the Human Body by Beth Ann Ditkoff, NOOK Book (eBook) | Barnes & Noble
Why Don't Your Eyelashes Grow?: Curious Questions Kids Ask About the Human Body

Why Don't Your Eyelashes Grow?: Curious Questions Kids Ask About the Human Body

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by Beth Ann Ditkoff
     
 

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Read Beth Ann Ditkoff's posts on the Penguin Blog.

Ever wondered what that small dewdrop thing is in the back of your throat? Or why you hiccup? Why Don’t Your Eyelashes Grow? addresses every weird question about your body that you could think of—or didn’t even think to ask. Prompted by the brain stumpers her own children and

Overview

Read Beth Ann Ditkoff's posts on the Penguin Blog.

Ever wondered what that small dewdrop thing is in the back of your throat? Or why you hiccup? Why Don’t Your Eyelashes Grow? addresses every weird question about your body that you could think of—or didn’t even think to ask. Prompted by the brain stumpers her own children and patients have asked her over the years, Dr. Beth Ann Ditkoff compiled a list of curious medical questions. In this book, she reveals the mysteries of the human body (gross, funny, or ugly!) to children and adults.

With eye-opening questions, like “Why do toenails grow slower than fingernails?” and “Why do you have earwax?” to weird oddities, like “Why do some people have dimples?” and “Why do you get a headache when you eat ice cream too quickly?” Ditkoff also explains hilarious and bizarre anatomy “situations” that every curious kid wonders, from “If you put a pea up your nose, will it go into your brain?” to “If you eat Pop Rocks candy and drink soda at the same time, will your stomach explode?” With expert explanations throughout, Why Don’t Your Eyelashes Grow? is an entertaining potpourri of fun factoids packed with real information.

Product Details

ISBN-13:
9781440641916
Publisher:
Penguin Publishing Group
Publication date:
10/02/2008
Sold by:
Penguin Group
Format:
NOOK Book
Pages:
192
File size:
428 KB
Age Range:
18 Years

Read an Excerpt

Why are your lips red?

First of all, did you know that the outline or the border of your lips (called the vermillion border) is a special feature of humans only? This transition line from your skin to the pinkish-red part of your lips is found only in humans—no one knows why. The lips appear red because of the underlying blood vessels. Arteries and veins are connected through a series of tiny interlocking loops of blood vessels call capillaries. These red-colored blood-filled capillaries are close to the thin skin on your lips, so your lips appear red.

Why doesn't it hurt when you get a haircut?

Your hair is made up of two main parts—the hair follicle and the hair shaft. The follicle is the root that sits inside the scalp and contains the part of the hair that is alive and can feel pain. The hair shaft is the part of your hair that is outside the scalp that you can see. It is made up of protein called keratin—but this protein does not contain living cells. Therefore, when you cut the keratin protein it doesn't hurt. But you do feel pain if your hair is yanked out of the scalp, because the hair is being pulled out of its root, the living part of the hair.

Why do I laugh when I think something's funny?

Humans are not the only animals who have the ability to laugh. Smiling and laughing have been observed in non-human primate species during social play. This type of behavioral response serves as a signal to the group by spreading positive emotions, decreasing stress, and contributing to the cohesiveness of the group.

Humor-evoked laughter in humans can be divided into three stages. When listening to a joke, the first part of the humor is the punch line, an incongruous ending. Second, your mind begins to problem-solve in order to interpret this incongruity or surprise. Finally, the brain is able to appreciate these steps, which together form humor and evoke a response of laughter.

The neurotransmitter dopamine (a brain chemical) is responsible for allowing the brain to progress through the stages of humor. Dopamine allows us to feel good when we laugh. Some studies have demonstrated an improvement in health for chronically ill patients when they are exposed to funny stimuli. Thus the old adage "Laughter is the best medicine" probably has a note of truth in it.

Why, when I'm asleep at night, do I sometimes startle myself awake?

As you pass through light and deep sleep cycles during the night, your arms and legs may occasionally twitch or jerk. Sometimes the movement is enough to wake you up briefly. If you have clusters of these repeated leg jerks—at least five jerks in an hour—you may have periodic limb movement disorder (PLMD), which is characterized by leg jerks every twenty to forty seconds, each of which causes a brief awakening.

Restless leg syndrome (RLS) is another type of motor syndrome that can cause sleep problems. RLS is characterized by a creepy-crawly or pins-and-needles sensation of the lower legs, which is only relieved by moving them. Both PLMD and RLS can cause difficulty falling asleep and staying awake, which can lead to daytime sleepiness. In moderate to severe cases, prescription medication may be helpful.

What People are saying about this

Mehmet Oz
"Dr. Ditkoff's informative and accessible book will save parents the embarrassment of making up mediocre answers to the often sophisticated questions children ask about the miracles of the human body. Pass along the knowledge with this well thought-out book."--(Mehmet Oz, M.D., coauthor of You: The Owner's Manual)

Meet the Author

Beth Ann Ditkoff, M.D., is a former surgeon at New York-Presbyterian Hospital / Columbia University Medical Center in New York City and coauthor of The Thyroid Guide. She lives in Westchester County, New York.

Andrea Ditkoff is twelve years old and in the seventh grade, and Julia Ditkoff is ten years old and in the fifth grade. They provided all of the questions for this book.

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Why Don't Your Eyelashes Grow?: Curious Questions Kids Ask about the Human Body 4.7 out of 5 based on 0 ratings. 7 reviews.
Anonymous More than 1 year ago
This book is pretty good with interesting facts, but there is one fact that I am positive it is not true. That fact says that your blood is blue inside your body. I read out of another book that says that is a myth. Do you know how I know your blood is red inside your body? When you blush your face turns red, right? This same book says that when your face turns red, that is blood rushing to your face. If our blood was blue, then every time you would blush, your face would turn blue. And when it says that you can see your blue blood under your wrist, those are just your veins. Still not convinced? The book says that your blood turns red when it is in oxygen. Well, the blood cells IN YOUR BLOOD carries oxygen molecules. So your blood should be red if you are breathing. I do not recommend this book for anyone who wants to know truthful facts
Anonymous More than 1 year ago
Poop
Anonymous More than 1 year ago
Anonymous More than 1 year ago
My children and I loved this book! It really helped answer some questions that they have asked and I just did not know the answer too! It was like the authors read our minds and knew what kids would ask about. I recommend this book to any parent who needs answers to some interesting questions!
Anonymous More than 1 year ago
I really enjoyed reading this book. I liked it because it kept me interested the entire time. I hope all people will buy this and enjoy it as much as I do.
Anonymous More than 1 year ago
This book helped my family and I become closer together. We would all sit around the kitchen while eating dinner, we would laugh at all of the good questions and enjoy the bonding time we were having together. My family also thought this book was pretty neat because it was written by a mother and her two daughters wrote it. It has inspired us to really start to read more intense books.
Guest More than 1 year ago
This book taught me a lot and helped me answer what my children were asking. I would recommend this book to families.