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Posted by bio_man   September 8, 2023   4258 views

In the 1950s, 20,000 cases of polio occurred annually. After vaccination began, the number of cases plummeted to 10 in 1979.

The major diseases of a century ago reflect how far we have come in our scientific and medical knowledge. Since then, the landscape of human health has evolved significantly, shaped by advancements in science, medicine, and technology. In this article, we will journey through time to understand the major diseases humans faced a hundred years ago.

Infectious Diseases

One hundred years ago, infectious diseases were among the leading causes of death. These diseases were caused by pathogens such as bacteria, viruses, and parasites. Tuberculosis (TB), caused by the bacterium Mycobacterium tuberculosis, was a major global heal ...

Pellagra Diseases Cardiovascular Pathogens Bacteria TB Infection Rickets Flu Pandemic
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Posted by bio_man   August 25, 2023   2835 views   Featured
Scientists have often questioned the necessity for organic foods (those not produced with pesticides). In a pioneering study titled "Organic diets significantly lower children's dietary exposure to organophosphorus pesticide," conducted in 2006, researchers delved into this very question. By monitoring and analyzing the urine of children exposed to both organic and conventionally produced foods, the study aimed to shed light on the potential advantages of choosing organic options. Some of the results are summarized in the table below:


The study's findings provided intriguing insights into the effects of organic and conventional diets on children's health. The key takeaways were as follows:

Lower Levels of Metabolites: During the phase when th ...

Organic foods health benefits diet pesticides farming children development
Posted in Research
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Posted by bio_man   August 25, 2023   1963 views

The harsh desert environment is known for its scorching temperatures and scarcity of water, making it a challenging place for most creatures to thrive. However, amidst this seemingly inhospitable landscape, the kangaroo rat stands out as a remarkable example of nature's ingenious adaptations. These small rodents have not only managed to survive but thrive in the desert with virtually no drinking water. The secret to their survival lies in their unique physiological features, particularly their kidneys' specialized structure.

Generally, the majority of water reabsorption in the kidneys occurs in the loop of Henle (see illustration). This structure is responsible for the reabsorption of water and essential ions from the urine back into the bl ...

Kidney anatomy rats desert survival
Posted in Interesting Facts
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Posted by bio_man   August 15, 2023   1659 views

Hidden within the vibrant red hues of a ripe tomato lies a secret that has excited taste buds and intrigued culinary experts for centuries. We're talking about monosodium glutamate, better known as MSG. While often associated with Chinese cuisine, MSG's natural presence in tomatoes adds a layer of complexity to the flavor profile of this beloved fruit (see vegetable).

MSG is a naturally occurring compound found in various foods. This flavor-enhancing substance gained notoriety in the mid-20th century when it was widely used as a food additive to intensify umami flavor – the so-called "fifth taste" that imparts a rich and savory sensation to dishes.

MSG was originally isolated from kombu seaweed by Japanese chemist Kikunae Ikeda in 1908. Its ...

MSG tomatoes umami amino acid
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Posted by bio_man   July 17, 2023   1750 views

Fasting is a practice that has been followed by various cultures and religions for centuries. It involves abstaining from food and, in some cases, beverages for a defined period. While fasting can have several physical and mental benefits, it is not uncommon for individuals to notice an unpleasant odor in their breath during fasting periods. Let's explore the reasons behind this phenomenon and uncover the science behind why one's breath may smell when they've fasted.

When we fast or restrict our carbohydrate intake for an extended period, our body undergoes a metabolic state called ketosis. During ketosis, the body shifts its primary source of energy from glucose (derived from carbohydrates) to ketones, which are produced when the liver brea ...

ketones acetone breath tips biology
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