One in six people with broken heart syndrome had cancer and they were less likely to survive for five years after it occurred, according to new international research in Journal of the American Heart Association.
Jul 17, 2019
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Last week, I had a shocking cold. Blocked nose, sore throat, and feeling poorly. This made me think about the countless vitamins and supplements on the market that promise to ease symptoms of a cold, help you recover faster, ...
Aug 6, 2018
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As the number of cases of COVID-19 rises, experts continue to learn more about the disease. They know that symptoms include fever, cough and shortness of breath. But what does the virus do inside your body to cause those ...
Mar 25, 2020
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Research into a new drug which primes the immune system in the respiratory tract and is in development for COVID-19 shows it is also effective against rhinovirus. Rhinovirus is the most common respiratory virus, the main ...
Feb 2, 2021
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A component of red wine and grapes can help control inflammation induced by a bacterial pathogen that is linked to upper respiratory tract inflammatory diseases such as asthma, chronic obstructive pulmonary diseases (COPD) ...
Sep 28, 2016
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An analysis of tissue samples from the autopsies of 44 people who died with COVID-19 shows that SAR-CoV-2 virus spread throughout the body—including into the brain—and that it lingered for almost eight months. The study ...
Dec 30, 2022
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Detailed virological analysis of nine adults from Munich, Germany, with comparatively mild symptoms of COVID-19 respiratory disease is reported in a paper published in Nature. The study shows that there is active replication ...
Apr 2, 2020
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"Biology shows us that there are additional ways to reduce the risk of serious coronavirus infections, in addition to hand hygiene and keeping distance," Viola Vogel writes.
Mar 13, 2020
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They traveled a huge distance, evaded a protective barrier, and found themselves in a strange and unwelcoming land.
Feb 21, 2017
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The human body has a large surface area that is in contact with the outside world, much of this comes from the body's largest organ – our skin – which protects us from a variety of potential threats. The other major sites ...
Feb 28, 2019
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In humans the respiratory tract is the part of the anatomy that has to do with the process of respiration.
The respiratory tract is divided into 3 segments:
The respiratory tract is a common site for infections. Upper respiratory tract infections are probably the most common infections in the world.
Most of the respiratory tract exists merely as a piping system for air to travel in the lungs; alveoli are the only part of the lung that exchanges oxygen and carbon dioxide with the blood.
Moving down the respiratory tract starting at the trachea, the tubes get smaller and divide more and more. There are estimated to be about 20 to 23 divisions, ending up at an alveolus.
Even though the cross-sectional area of each bronchus or bronchiole is smaller, because there are so many, the total surface area is larger. This means there is less resistance at the terminal bronchioles. (Most resistance is around the 3-4 division from the trachea due to turbulence.)
This text uses material from Wikipedia, licensed under CC BY-SA
