Your heart is busy at work pumping blood around your body through tiny tubes called veins and arteries.  The blood is delivering oxygen to all parts of your body which is like food for your muscles.

Your blood also carries around antibodies which are like an army of soldiers fighting off infections and diseases.

Is eating lots of fatty foods like crisps, chips and sausages good or bad for your body? Click your answer to see if you are right. Bad Good

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