What Is the Digestive System? The digestive system breaks down the food we eat into tiny parts to give us fuel and the nutrients we need to live. As food breaks down, we get amino acids from protein, ...

What Does the Heart Do? The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After ...

What Is the Respiratory System? When we breathe, the respiratory system takes in oxygen and sends out carbon dioxide. The cells in our bodies need fresh oxygen to stay alive. As cells do their jobs, ...

Everybody knows that some organs in the human body are necessary for survival: you need your brain, your heart, your lungs, your kidneys... KIDNEYS? Absolutely. Even though you won't find a ...

What Does the Heart Do? The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After ...

Coughing is a healthy reflex that helps clear the airways. A severe cough or one that lasts more than a week requires a medical checkup. But many coughs are caused by a virus that just needs to run ...

Occupational therapy (OT) is a branch of health care that helps people of all ages who have physical, sensory, or cognitive problems. OT can help them regain independence in all areas of their lives.

Most spider bites don't go all the way through skin, so they usually cause only mild reactions. But a bite from a black widow spider or brown recluse spider can cause serious reactions and needs ...

How Can We Prevent Fires? Always be aware of possible fire hazards in your house or apartment. To prevent fires, keep these tips in mind: According to the National Fire Prevention Association (NFPA), ...

The Internet is amazing! But it also has some things you need to watch out for. You're always you, of course. But if you use a smartphone, tablet, or computer to play games and text with friends, you ...

What Are Middle Ear Infections? Ear infections happen when viruses or bacteria get into the middle ear, the space behind the eardrum. When a child has an ear infection (also called otitis media), the ...

How much do you know about the urinary system, which makes pee? Find out by taking this quiz!