6 tips: Surf the net, visit green sites, take green quizzes, eat omega-3 fatty acids, join a green charity and bike to work for a healthier and greener brain. Learn more about greening your brain and other tips.
WHAT'S INSIDE: HUMAN BODY
- Body Parts
- Body Systems
FEATURED: HUMAN BODY
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The kidneys spend 24 hours a day, seven days a week filtering gallons and gallons of blood. But that's not all these little bean-shaped organs accomplish in a day.
The endocrine system comprises a number of glands that produce hormones with a varied array of vital functions. Hormones control or regulate the development or function of structures throughout the body.