Our bodies use carbohydrates and fats as energy sources.After consistent aerobic training, the body gets more efficient at burning fat, which requires a lot of oxygen to convert it into energy.Because aerobic training makes your heart and lung stronger, your cardiovascular system gets better at delivering oxygen. As a result, your body turns into a fat-burning machine, your fat cells shrink, and you get slimmer.If you’re interested in reading more about body transformation, read our transformation blog written by Jazz Alessi’s, expert personal trainer Limehouse.

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