Hurts like hell --> No Pain No Gain Fat Burning Ab Exercises. Burn fat and slim down while toning up your abs and strengthening your core. Repeat the circuit once or twice more. Click the image to see the moves in GIF form.
I wish more people understood what the word "sustainable" meant instead of thinking its just some word associated with being green. Air, Water, Waste, Food, Energy – Designers Imagining Self-Contained Living Systems