Scientists have discovered a group of people in Ecuador with a rare gene mutation that could reveal ways to extend the human life span.
The mutation affects the way the body uses growth hormone. It causes a condition called Laron syndrome.
People with the syndrome are typically less than four feet tall, but they are protected from cancer and diabetes, according to a study in Science Translational Medicine.
The study is the result of a scientific journey that started more than 15 years ago in a lab in Los Angeles.