How did hawking exceed the average lifespan of someone once they are diagnosed with ALS by 50 years? Best outliers live 20 addl. years. How did he regain straightness in his hands after they began to curl up from lack of control? How did his lower teeth magically grow back from nubs? Did his cheek structure change after the mid 80's? How did his hair turn from brown to blonde? Why did his1st wife remarry after 1985?