After PSY posted side-by-side photos showing off his recent weight loss, the “Gangnam Style” singer apologized to fans that were not particularly thrilled about the change.

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Incline walking can torch calories and boost metabolism, but how long should you do it to see results? Experts reveal the ideal duration for fat loss.

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The right balance of exercise and diet can lead to a whole-body trimmed physique -- even if you don't go to the gym.