Old Age Secrets Of The Isolated And Mutated

On Beyond 100 by Stephen S. Hall.  National Geographic.  May 2013.

(1)  The _____________ have mutations that guard against high blood pressure and Alzheimers.

(2)  __________  with _____________  have mutations that inhibit diabetes and cancer but also causes _____________________.

(3)  A mutation that ________________ in the blood is characteristic of the _________________.

(4)  __________ Americans have a mutation that lessens the chance of ________ and _______.