Lung Damage

How the human body first fights off pathogens

People constantly encounter viruses, bacteria or parasites. Fortunately, our skin, the specialized lining of our guts and other parts of our body that are exposed to the outside world prevent them from entering. When a pathogen ...

Jul 24, 2017
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Why do we actually have blood?

Just as a village can't grow into a city without some form of transport (road, rail or river) that provides necessary interconnections for it to flourish, living things are limited in the size they can reach unless they have ...

Jul 28, 2017
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How to trick your heart into thinking you exercise

Researchers have discovered that a protein called cardiotrophin 1 (CT1) can trick the heart into growing in a healthy way and pumping more blood, just as it does in response to exercise and pregnancy. They show that this ...

Aug 08, 2017
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