Eric's lost all of his hair, and he's picked up a few silver fillings on his journey through life. Other than that, there's very little to pick between him and his brother Dany at all. On the evidence of this, perhaps Dany should be enjoying his hair while he still can!
At least Dany can take comfort in the fact that his beard won't have gone gray by the time he reaches Eric's age - and also that he'll still be able to pull off the same rock and roll pose.