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human life cycle

Human Life Cycle
Image: iStockphoto.com/Reynardt

Human Life Cycle

The human life cycle carries us from developing fetus to wobbly infant to child, through the metamorphosis of puberty into adulthood, and ultimately to old age. Take a journey through the changes that mark the human life cycle. It's a wild ride.

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Explorer: Science of Babies

Explorer: Science of Babies

What babies are capable of may surprise you. Find out what researchers are learning about the amazing development of the infant brain. More...

Video
National Geographic
Aging Effects

Aging Effects

What actually happens to the body as it ages? Glad you asked. See how the brain, bones, senses, and more change as the years pass. More...

Video
National Geographic
Drama of Life Before Birth

Drama of Life Before Birth

Nearly 50 years ago Lennart Nilsson’s photographs of the developing fetus gave LIFE magazine readers a never-before-seen view. Take a look at them and the technology that made these photos possible. More...

Images
LIFE magazine
New Wrinkles on Aging

New Wrinkles on Aging

Want to live to 100? This audio slideshow profiles three populations of people who seem to have figured it out. One hint: Stay social! More...

Video
National Geographic
The Teenage Brain

The Teenage Brain

The teenage brain is locked in a tug-of-war between impulse and logic. As it develops, the logical part of the brain gets stronger...and decisions get better. More...

Article
Science News for Students
Developmental Milestones

Developmental Milestones

First smiles, words, and steps are among the many development milestones reached during the first five years of life. Explore all of them. More...

Interactive
Centers for Disease Control and Prevention
Everything You Wanted to Know About Puberty

Everything You Wanted to Know About Puberty

When it comes to growth spurts, the biggest ones happen during infancy and puberty. But height isn't the biggest change that comes during the teen years. Get the details. More...

Article
TeensHealth
Learning Language Before Birth

Learning Language Before Birth

Do babies learn language before birth? "Yes!" say scientists. Parents may not believe it, but kids start listening to them weeks before they are born.
More...

Article
Science News for Students
Life Expectancy Graphs

Life Expectancy Graphs

People are living longer now than ever before. The greatest increases in life expectancy have come by preventing deaths at birth. Women still live longer than men. Explore the trends with this interactive. More...

Interactive
University of Oregon
Teenage Transitions

Teenage Transitions

Take a tour of the transitions that come with puberty. See how bodies change and read what science says about teen behavior. More...

Interactive
BBC
The Longevity Genes Project

The Longevity Genes Project

Dr. Nir Barzilai studies the genetics of how we age. His wife's grandmother lived well to 102, but his parents died much younger after long illnesses. He wants to understand why. More...

Profile
Albert Einstein College of Medicine

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