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Can melatonin help you sleep better?

health.howstuffworks.com/mental-health/sleep/basics/melatonin-sleep.htm

Can melatonin help you sleep? Read on to discover if melatonin supplements can be a sleep aid and the connection between melatonin and sleep.

Marsupial Pictures

animals.howstuffworks.com/mammals/marsupial-pictures.htm

Marsupials are mammals that commonly bear a pouch such as kangaroos and koalas. Learn more by viewing these marsupial pictures.

Emotion Pictures

science.howstuffworks.com/life/inside-the-mind/emotions/emotion-pictures.htm

Take a look at these emotion pictures to see the range of human emotions experienced around the world. Learn about emotions with emotion pictures.

Heart Pictures

health.howstuffworks.com/human-body/systems/circulatory/heart-pictures.htm

Take a look at these heart pictures to learn about the different parts of the heart and more. See our heart pictures to learn more.

Brain Pictures

health.howstuffworks.com/human-body/systems/nervous-system/brain-pictures.htm

What does your brain really look like? See the different ways we can view the human brain and learn interesting facts with these brain pictures.

Is sleep that important?

health.howstuffworks.com/mental-health/sleep/basics/importance-of-sleep.htm

The importance of sleep is something you hear about often in health news, but is lots of sleep really necessary? Investigate the importance of sleep.

How Sleep Consolidates Our Memories

health.howstuffworks.com/mental-health/sleep/basics/sleep-consolidates-memories.htm

A new study determined it takes a split second for our brains to replay and store certain memories when we sleep. HowStuffWorks looks at the science.

Heart Health Pictures

health.howstuffworks.com/wellness/preventive-care/heart-health-pictures.htm

Heart disease is one of the top causes of death in the United States. Take a look at these heart health pictures to learn how to stay healthy.

Staying Healthy Pictures

health.howstuffworks.com/wellness/preventive-care/staying-healthy-pictures.htm

Being healthy is about more than just being free of germs. Get some tips on how to maintain a healthy lifestyle -- from the inside out.

Radio Telescope Image Gallery

science.howstuffworks.com/radio-telescope-pictures.htm

The radio telescope pictures in this gallery feature observatories around the world. See radio telescope pictures and the astronomers who use them.

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