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Human Life Cycle

Scary Video Shows How Quickly Bacteria Becomes Antibiotic Resistant

Harvard Medical School shows the power of bacteria by producing a time-lapse video of bacteria spreading despite the use of antib...

Is Weight Gain Normal During Puberty?

Puberty can be an awkward time of life. Hormone changes during puberty may cause your child to gain some weight. ...

Can You Gain Height After Puberty?

Height and puberty correspond to each other, but you've probably noticed that some teenagers get taller well after they've...

How Much Vitamin B-12 Should I Take Daily?

Vitamin B-12, or cobalamin, is an important component for several metabolic reactions in the body. Although Vitamin B-12 deficienc...

How to Boost Your Energy When You Are Over 50

When you turn 50 or 60, no one expects you to have the same energy levels you had in your teens and 20s. Slowing down as you age i...

Human Metabolism & the Krebs Cycle

Energy is required by the human body for everything from breathing and circulation, to running and weightlifting. The body produce...

Can You Be on Weight Watchers While You Are Pregnant?

Weight Watchers is a weight-loss program that has been around since the 1960s. The program offers tools, motivation and education ...

Characteristics of Nematodes

Nematodes are highly abundant, non-segmented worms that are present in a variety of habitats. Many are free-living (such as those ...

12 Life Secrets From People Who Have Lived the Longest

12 Life Secrets From People Who Have Lived the Longest. In early 2014, the Centers for Disease Control and Prevention reported that Americans are living longer than ever, with life expectancies continuing to increase annually. The news is good across the board, with both genders and various ethnicities (white, black and Hispanic) demonstrating longer life spans and life expectancy for Americans is now estimated at 78.7 years on average. However, the rise in life expectancy is not matched by a rise in the “health span,” according to the same CDC report. If you’re looking to live longer and better, consider implementing the 12 proven practices on the next slides.

Normal Pulse Rate for a 12-Year-Old

Throughout development from infancy to adulthood, normal vital signs change. Due to anatomical differences, what is normal for one...
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