Articles In This Section
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Word! Hypothermia
Hypothermia is when the body gets so cold that it can't warm itself up again.
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Word! Hyperventilate
When you hyperventilate, you breathe too deeply and too quickly. This can make you feel lightheaded or short of breath.
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Word! Hydrocephalus
Hydrocephalus happens when the fluid that cushions the brain builds up inside the head.
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Word! Hives
Hives are pink or red bumps or slightly raised patches of skin that can appear due to an allergic reaction.
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Word! Herpes Zoster
Herpes zoster, also called shingles, causes a rash with blisters on the body and is very painful.
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Word! Hemophilia
People with hemophilia have blood that doesn't clot the way it should. That means that they bruise and bleed easily.
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Word! Hearing Loss
Hearing loss happens when one or more parts of your ears don't work and you can't hear perfectly.
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Word! Headache
Most headaches happen in the nerves, blood vessels, and muscles that cover your head and neck.
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Word! Hand, Foot, and Mouth Disease
Hand, foot, and mouth disease can cause fever and blisters on the hands and feet and in the mouth and throat.
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Word! Hypoglycemia
Glucose (a type of sugar) is the body's main energy source. Hypoglycemia occurs when the levels get too low.
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Word! Hyperglycemia
Glucose (a type of sugar) is the body's main energy source. Hyperglycemia occurs when the levels get too high.
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Word! Hormones
Hormones are special chemicals your body makes to help it do certain things - like grow up!
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Word! Hematoma
Hematoma is just a fancy name for bruise, or black and blue mark.
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Word! Histamine
Histamine is a substance in the body that's released during an allergic reaction.
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Word! Hemangioma
This is a big word for a type of birthmark.
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Word! Hydrogen Peroxide
Hydrogen peroxide is a chemical that can clean your cuts and scrapes.
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Word! Hyperopia
Having hyperopia is also known as being farsighted, which means you can see things far away, but have trouble seeing objects up close, like the words in a book.
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Word! Humidifier
If you get nosebleeds a lot or your nose often feels dry, it may be time to get a humidifier.
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Word! Hydrocortisone
Hydrocortisone is medicine that helps itchy skin feel better.
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Word! Hormone
Hormones are special chemicals your body makes to help it do certain things - like grow up!
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Word! Heredity
If people say you look like your parents, they're probably talking about heredity.
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Word! Heat Exhaustion
Super hot in summer? Then watch out for this.
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Word! Hay Fever
No, hay fever's not when a horse is sick!