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Bulk up like Wolverine.
The actor is no stranger to the gym.
It's no joke—he's serious about his weight loss.
The 'Stranger Things' actor went from flabby to fearsome.
Celebrities: They need gym motivation just like us.
Get a behind-the-scenes look.
'The Voice' star's anywhere workout.
To play the Norse god of thunder, Hemsworth hit the gym hard.