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Endocrine System
en español: El sistema endocrino Medically reviewed by: KidsHealth Medical Experts Website: https://kidshealth.org/en/teens/endocrine.html What Is the Endocrine System? The endocrine system is made up of glands that make hormones. Hormones are the body'...
Eyes
en español: Los ojos Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/eyes.html What Are the Eyes and How Do They Work? In a single glance, our eyes work with our brains to tell us the size, shape, color, and texture of...
Hair, Skin, and Nails
en español: Pelo, piel y uñas Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/skin-hair-nails.html Hair, skin, and nails form the outer layer of the body, called the integumentary (in-teh-gyoo-MEN-tah-ree) system. Ha...
Immune System
en español: Sistema inmunitario Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/immune.html Whether you're stomping through the showers in your bare feet after gym class or touching the bathroom doorknob, you're being e...
Kidneys and Urinary Tract
en español: Los riñones y las vías urinarias Medically reviewed by: KidsHealth Medical Experts Website: https://kidshealth.org/en/teens/kidneys.html What Are the Kidneys and Urinary Tract? The urinary tract is one of the systems that our bodies use to ge...
Lungs and Respiratory System
en español: Los pulmones y el aparato respiratorio Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/lungs.html What Are the Lungs and Respiratory System? The lungs and respiratory system allow us to breathe. They bring ...
Metabolism
en español: Metabolismo Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/metabolism.html Overview What Is Metabolism? Metabolism (meh-TAB-uh-liz-um) is the set of chemical reactions in the body's cells that change foo...
Mouth and Teeth
en español: Boca y dientes Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/mouth-teeth.html Why Are the Mouth and Teeth Important? Every time we smile, frown, talk, or eat, we use our mouths and teeth. Our mouths and ...
Spleen and Lymphatic System
en español: El bazo y el sistema linfático Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/spleen.html What Are the Spleen and Lymphatic System? The spleen is located in the upper left part of the belly under the ribc...
Your Heart & Circulatory System
en español: Corazón y aparato circulatorio Medically reviewed by: Larissa Hirsch, MD Website: https://kidshealth.org/en/teens/heart.html The Heart What Is the Heart and What Does It Do? The heart is an organ that’s a pump, usually beating about 60 to 1...
5 Tips for Dealing With Shots
en español: 5 consejos para hacer frente a las inyecciones Medically reviewed by: Zachary Radcliff, PhD Website: https://kidshealth.org/en/teens/tips-shots.html Do shots make you nervous? You're not alone. Lots of people dread them because they have a ve...
5 Ways to Fight the Flu
en español: Cinco formas de combatir la gripe Medically reviewed by: Elana Pearl Ben-Joseph, MD Website: https://kidshealth.org/en/teens/fight-flu.html The flu is annoying enough on its own. So it doesn't help that flu season falls at one of the most exc...
5 Ways to Stay Healthy for the Holidays
en español: Cinco formas de mantenerse sano durante las fiestas de fin de año Medically reviewed by: Melanie L. Pitone, MD Website: https://kidshealth.org/en/teens/holiday-tips.html 'Tis the season to beat sickness (not to mention tiredness, stress, or o...
Blood Types
en español: Grupos sanguíneos Medically reviewed by: Maureen F. Edelson, MD Website: https://kidshealth.org/en/teens/blood-types.html Introduction A blood transfusion is when a donor's blood is given to a patient. This is a lifesaving treatment for many ...
Donating Blood
en español: Donar sangre Medically reviewed by: Maureen F. Edelson, MD Website: https://kidshealth.org/en/teens/donating-blood.html Why Should I Donate Blood? You might think that donating blood is most important during a natural disaster or other major...
Genes and Genetics
en español: Genes y genética Medically reviewed by: Amy W. Anzilotti, MD Website: https://kidshealth.org/en/teens/genes-genetic-disorders.html What Is Genetics? Genetics is the study of genes. Our genes carry information that gets passed from one genera...
Getting Rid of Old Medicines
en español: Deshacerse de medicamentos antiguos Medically reviewed by: Yamini Durani, MD Website: https://kidshealth.org/en/teens/old-meds.html Why Should I Get Rid of Old Medicine? Medicine — even medicine that's expired or seems like it would be harmle...
Hand Washing: Why It's So Important
en español: Lavarse las manos: Por qué es tan importante Medically reviewed by: Yamini Durani, MD Website: https://kidshealth.org/en/teens/handwashing.html Why Is Hand Washing So Important? Hand washing has always been the best way to keep from getting ...
3 Ways to Increase Positive Emotions
en español: 3 maneras de aumentar las emociones positivas Medically reviewed by: KidsHealth Behavioral Health Experts Website: https://kidshealth.org/en/teens/positive-emotions.html Positive emotions don't just feel good — they're good for you. Research ...
3 Ways to Practice Gratitude
en español: Tres formas de mostrar gratitud Medically reviewed by: KidsHealth Behavioral Health Experts Website: https://kidshealth.org/en/teens/gratitude-practice.html Everyone can benefit from making an effort to practice gratitude every day. These 3 st...