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Posted by bio_man   May 26, 2019   1858 views

The Falkland Islands is an archipelago (meaning a cluster of smaller islands) in the South Atlantic Ocean, 300 miles (483 kilometres) east of Argentina.

The 700+ islands have a combined area of 4,700 square miles (12,000 square kilometers), with a population of approximately 4,500 people. The Islands economy is largely based on sheep farming, with an emphasis on high-quality wool exports. The current sheep population scattered throughout the land exceeds 500,000, which equates to roughly 111 sheep per person; per capita, that's 106 sheep per square mile (41.6 per square kilometer). Since the Islands are located north of Antarctica, sheep farming had to have been introduced at some point in history. Early settlers who were of British origin [ ... ]

Islands Argentina United Kingdom Commonwealth
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Posted by bio_man   May 22, 2019   1589 views

In 1943, Walt Disney helped combat malaria by making an animated film called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitoes transmit malaria, which is a very bad disease. While not specifically mentioned in the film, malaria is caused by several species of the protozoan Plasmodium, of which Plasmodium vivax and Plasmodium falciparum are the most common. The most serious infections involve P. falciparum, which causes a higher incidence of complications and death. The short film advocated the killing of mosquitoes to stop the disease.

Luckily, by 1951, malaria was finally eliminated in the United States (eliminated means that no new cases arose in the country for 3 years). Today, oral chloroqui [ ... ]

Parasite Disease Malaria Video Disney
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Posted by bio_man   April 5, 2019   3265 views

There's no question that many parents today still, to some extent, hesitate to vaccinate their babies due to fears that it's linked to autism. Of course, this idea all started after a 1998 study published in The Lancet showed a link between sudden behavioral changes in 12 children shortly after a vaccine was administered (article linked below). Although the study has been retracted due to technical flaws, such as the small sample size used by the researchers to make their conclusions, parents to this day still reference the article to justify why they shouldn't vaccinate their children.

Most misinformation on vaccines comes from the lack of education on how they're developed, what they contain, and how they work. Personally I don't blame par [ ... ]

Vaccines Immune System Autism Mercury
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Posted by bio_man   April 3, 2019   3216 views

If you were to guess, what do you think ancient humans used as contraceptives? It's definitely hard to list even a couple of ideas given how far we've come since the start of the 20th century. 

According to historians, the first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Dried dung was inserted into the vagina to form an impenetrable barrier. Other pessaries used back in the day included tree sap, lemon halves, cotton, wool, sea sponges, and elephant dung.

Later on, however, condoms made of animal bladders or intestines were also reportedly used. Luckily, in 1844, Charles Goodyear obtained the first patent for a rubber condom. [ ... ]

Contraceptive Egyptians
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Posted by bio_man   April 1, 2019   3243 views

Asthma is one of those illnesses that is so common that we never stop to question what causes it and how it could be treated. Affecting more than 25 million people, asthma is one of the most common chronic respiratory conditions in the United States. It is caused by the increased reactivity of the tracheobronchial tree to various stimuli, including exercise, allergies, or infections of the respiratory tract. Symptoms include, but are not limited to breathlessness, cough, wheezing, and chest tightness.

Common Triggers of Asthma

The most commonly used medications for asthma are: bronchodilators, xanthine derivatives, leukotriene inhibitors, corticosteroids, and mast cell stabilizers (see full list below). Xanthine derivatives treat asthma by re [ ... ]

Disease Asthma Respiratory System Chronic Disease medicine treatments
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