How Do Muscle Fibers Determine How Fast You Run?

The influence of genetics and training or activity is a subject of much controversy in the scientific community.

Good Genes For The Flanagans

Shalane's mother and father were serious runners back in the day.

What Makes Kenyans Superior Runners? It’s Not The Genes

According to the real experts, Kenyans are no more naturally gifted for running than Canadians are for hockey.

Genes, Workouts, And You

A new study shows that some bodies react better to workouts than others.

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