The primary organs of the respiratory system are lungs, which function to take in oxygen and expel carbon dioxide as we breathe.
(Image credit: Leonello Calvetti | Shutterstock)
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Anger and Hostility May Damage Your LungsIn tests of lung function, men deemed more angry and hostile couldn't blow as much air out as others.
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Sucking Helium Could Reveal Hidden Lung DamageSoon, seemingly healthy smokers could inhale the gas in a new MRI technique to explore early signs of emphysema and asthma.
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Bizarre Survival Tactic: Gazelles Shrink Heart to Beat HeatShrinking their hearts and livers helps Arabian sand gazelles reduce water lost from breathing.
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How Bird Flu Infects Humans and Why We Don't Spread ItThe virus infects peoples' lungs, but too deeply to be coughed or sneezed at another potential victim.
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Marine Mammals Suffer Human DiseasesThe spread of disease among otters, manatees and sea lions could be an early warning to humans.
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Lab Lungs? Breakthrough Work Converts Stem Cells into Lung TissueIt's is an initial step towards building human lungs for transplantation.
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Insects Hold Breath for Days Because Air Could Kill ThemNew idea to explain a longstanding mystery of strange breathing habits.
