Diet is important. Before any exercise regime, a healthy diet is important ( and i don't mean the tye where you fast or whatever, simply that you eat theright type of food in the right amount according to "Your Needs".
THEN! , habit! , and with this one , a yoga regime that included cardio worked for me. HABIT , meaning, dili lang weather weather. Then, to add, Core Compression Exercises. Google is your friend for these types of drills. =)