This could save countless lives.
And here's how most people spend those years.
This treatment would be invaluable, as 13 percent of the world and 1/3 of Americans are considered obese.
Africa has successfully made headway in the fight against this deadly disease.
It's not immortality, but extended good health.
Women have had "the pill" for almost 60 years.
Genetic engineering can treat rare diseases, but could also give wealthy children a biological advantage.
We have entered a new stage in human evolution.
Are health-monitoring tattoos the next evolution of wearables?
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