Chris Hemsworth would rather gain weight than lose it. The actor has transformed his physique by bulking up or slimming down for a number of roles and though there are advantages and disadvantages to both, he prefers to pile on the pounds. He said: "It's the accordion effect which is the worst part. First I had to gain 20lbs of muscle mass for 'Thor' and then I had to lose all that, plus another 20lbs to play my character in 'Heart of the Sea'. "I'd rather put weight on than take it off, but they both have their plusses and minuses. "It comes back a little easier each time, the muscle memory. But you go from one extreme to the other, whatever that is, eating nothing or eating everything. Neither is particularly comfortable."
