ABS! Working your abs alone will not give you a six-pack. Six-pack abs are a product of one's overall health and condition. They won't pop up on their own by just crunches or planks. Your diet must be in check as well as your total body exercises. Strength train to build more muscles all over your body to give you an overall higher calorie burn - even while you are resting. Ab workouts are great, but combine them with a total body workout as well as a clean, lean diet for best results.