In a new interview at a cafe on November 7, model-turned-actor Hong Jong Hyun talked about losing weight for his recently concluded drama, 'Scarlet Heart: Ryeo.'

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He said, "I thought that [Prince Yo] would lose some weight because of all the hardships up to his death.  But I lost more [weight] than I thought I would.  I made sure I ate well, but I couldn't exercise and my days were irregular, so I lost a lot of weight.  I lost more weight than I intended.  I lost almost 7 kg (~ 15 lbs).  I started off as 73 kg (~ 161 lbs), but fell to about 67 kg (~ 148 lbs).  I lost a lot of weight, but I also was unable to exercise, so I lost my muscles on top of that."

Well, get plenty of rest, eat lots, and exercise more now!