Illustration by Natasha Tibbott

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Friday: Butt
Kneel on all fours with your head up. Keeping your left leg bent, raise it behind you so your thigh is in line with your torso. Exhale as you slowly push your left foot towards the ceiling. (If your back feels strained, lower your head and look at the floor.) Hold for one second. Inhale as you slowly lower your leg until your thigh is back in line with your torso. Do 12 repetitions with the left leg, then 12 with the right (one set) immediately following the first set of the calf exercise on the previous slide; alternate between the two for a total of four sets each.