Why age is *much* more than the year you were born, according to Jillian Michaels

According to Jillian Michaels, what makes you age is more than the year you were born. Here, she talks about everything that determines your true age.

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Photo: Getty Images/Daniel Zuchnik

16 Upper Glutes Exercises Personal Trainers Swear By for a Stronger Butt

Why your upper glutes deserve more love, and the best exercises to strengthen them.

woman doing an upper glutes exercise with an exercise band.