An unusual medical condition has caught the attention of doctors and the public. Argyria, a rare disorder caused by the accumulation of silver in the body, has left people with a permanent gray or blue-gray skin tone. Though such a transformation might seem like a scene from a science fiction movie, it is very real—and the effects are long-lasting.

In this article, we shall look at the causes, symptoms, diagnosis, and treatment of argyria. We shall also address its risks, preventive measures, and new research on the condition.

Argyria is a condition resulting from the long-term accumulation of silver in the human body, leading to the permanent discoloration of skin, eyes, and other tissues especially when exposed to sunlight. This condition results primarily from the overexposure to silver particles due to occupation or ingestion of compounds containing silver.

A case that gained much attention was that of an 84-year-old man in Hong Kong, whose ashen color complexion resulted from his exposure to silver. This man had initially been admitted to the hospital upon noticing a change in his skin color. Through further analysis, silver granules were identified within his skin tissues, blood vessels, and sweat glands. His blood tests revealed that his serum silver concentration was 40 times higher than normal, and he was diagnosed with argyria. Although he claimed to have no direct exposure to silver, the case revealed the hidden dangers of silver accumulation in the body.

How Does Silver Accumulate in the Body?

Most frequently, argyria is caused due to the ingestion and inhalation of silver or a compound containing the metal. As the silver particulates enter through the bloodstream in such cases, silver deposits in nearly all tissues- skin, liver, kidneys, lungs, spleen, or even the brain.

The commonest symptom presenting in argyria is, of course when silver accumulates in the skin. Light-exposure to silver triggers a form of photoreduction with the ultraviolet components of sunlight to take on a tinge of bluish or even grayish skin. This has also been implicated in other sites, including those in the fingernails and gums, plus the eyes of some patients who develop this. Internal organs sometimes take on blueish tinges, such as the liver or spleen but only through X-rays or another medical imaging modalities.

Who Is Likely to Get Argyria?

Argyria is currently an infrequent disease, though historically, the prevalence was more pronounced. This is mainly because during the 19th century, most people had intensive exposure to silver. Some common uses of silver during the same period were its application in various industries like mining and processing and as medication. The present leading causes of argyria include:

Ingestion of Colloidal Silver

Colloidal silver is a liquid solution that has tiny particles of silver, which is mostly sold as a dietary supplement. Those who ingest colloidal silver for purported health benefits—used allegedly to boost the immune system to treat everything from diabetes and cancer—risk argyria. The use of colloidal silver has not been supported by scientific research; experts in health also warn consumers from using such.

Work Exposure

People working in silver-related industries like silver mining, manufacturing, or jewelry making. If the workers have an extended exposure to silver particles suspended in the air or deposited on the skin.

Prolonged use of medication that contains silver compounds as a component. An example of such medication is eyedrops or nasal sprays. Silver accumulation in the body may occur with a prolonged duration of medication use.

Genetic predisposition

Some rare genetic factors may predispose a few people to the condition.

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Symptoms of Argyria

The main symptom of argyria is the gradual appearance of bluish-gray or grayish discoloration of the skin, mainly in areas exposed to sunlight. The color change is permanent and may cause psychological distress in most patients. Other symptoms of argyria include:

• As silver builds up in the body, fingernails may darken.
• Dark spots may appear on the skin, especially in skin areas that receive regular exposure to sunlight.
• The whites of the eyes (sclera) turn a bluish-gray color.
• In some cases, argyria patients may report mild symptoms including stomach discomfort, fatigue, or headaches.
• Over time, internal organ damage such as the liver, spleen, and kidneys may occur due to silver buildup; however, these symptoms are not always observable.

The condition is not fatal, but the symptoms may be uncomfortable, and the discoloration is permanent.

How is Argyria Diagnosed?

Argyria is usually established by a case history, medical examination, and laboratory tests. A crucial diagnostic method is to undertake a biopsy on the affected areas of the skin, which, in turn can show silver particles in the tissue. Blood examination can also tell the concentration level of silver inside the blood of the patient after the diagnosis. After establishing this diagnosis, another step is toward the cause or reason behind deposition of silver.

Treatment and Management

Currently, there is no treatment for argyria. The coloration due to the condition is irreversible. However, there are several measures to help manage the appearance of the condition:

• Regular application of sunscreen can prevent the coloration from worsening since exposure to UV rays accelerates the photoreduction process.
• Though not universally successful, some patients have undergone laser therapy to minimize the appearance of the coloration, though success varies.
• Many individuals use makeup to cover the grayish tint of their skin and restore a more natural appearance.
• Some topical treatments, such as 5% hydroquinone, may help lighten the skin and reduce the appearance of the discoloration.

In addition to cosmetic treatments, it is essential for individuals to avoid further exposure to silver or silver-containing compounds to prevent the condition from worsening.

Is Argyria Preventable?

Preventing argyria is largely about avoiding unnecessary exposure to silver. If you are taking dietary supplements or medications that contain silver, consult with your healthcare provider to explore alternative options. People who work with silver should ensure that their workplace adheres to safety regulations, such as the Occupational Safety and Health Administration’s (OSHA) exposure limits for silver dust.

Argyria is a rare but serious condition that can have a significant impact on an individual’s appearance and well-being. Although modern exposure to silver is less common than in previous centuries, certain lifestyle choices, such as using colloidal silver as a supplement or working in silver industries, still pose a risk. Understanding the causes, symptoms, and prevention of argyria is key to minimizing its impact on health. Although it has no known cure, precautions and proper remedies can be availed to lessen the impact brought about by the condition.

Argyria an unrecognized cause of cutaneous pigmentation in Indian patients. Indian J Dermatol Venereol Leprol. 2013

ARGYRIA. JAMA Network. 1937

Argyria. The New England Journal of Medicine. 2025

Each year, hundreds of people around the world lose their lives waiting for a life-saving organ transplant. The demand for organs far outweighs the supply, leaving many patients with little hope. But what if we could print organs—tailor-made for each patient—using their own cells? While we're not quite there yet, researchers are making significant strides in this futuristic field known as 3d bioprinting.

Though the technology is still far from clinical trials, scientists believe that when 3d-printed organs become a medical reality, the process will likely involve a blend of cutting-edge imaging, personalised cell harvesting, and highly advanced bioprinting methods. Here's what this groundbreaking process could look like.

Step 1: Creating a Personalised 3D Model

To print a functional organ, the process begins with creating a precise 3D blueprint. While generic models can serve as a starting point, personalisation is key. Using imaging technologies like MRI (Magnetic Resonance Imaging) and CT (Computed Tomography) scans, medical professionals can generate a detailed digital model of the organ tailored specifically to the patient’s anatomy. This personalized design enhances the chances of a successful transplant by ensuring the printed organ will fit and function properly in the recipient’s body.

Step 2: Collecting Patient’s Cells And Preparing Bioink

One of the biggest hurdles in organ transplantation is rejection, which happens when the recipient’s immune system attacks the new organ. To reduce this risk, scientists aim to use the patient’s own cells to build the organ. These cells are harvested, cultivated in labs, and combined with a specially designed “bioink”—a gel-like substance engineered to mimic the structure of natural tissues. This bioink becomes the medium through which living cells can be precisely layered and formed into complex biological structures.

Step 3: Printing the Organ

With a personalized 3D model in hand and a supply of bioink rich in the patient’s cells, the actual printing process begins. The organ is built layer by layer, using bioprinters designed to handle delicate biological material. Some methods involve extrusion-based bioprinting, which pushes the bioink through a nozzle to form a structure, similar to how icing is piped onto a cake. Other techniques rely on light-based bioprinting, which uses beams of light to shape the biomaterial with incredible precision.

In some cases, additional cells may be added to the organ after printing to support its development or enhance functionality. Although the exact tools and materials are still being refined, technologies such as the BIO X, BIO X6, and LUMEN X are among those helping to push the boundaries of what’s possible in tissue engineering.

Road Ahead

While researchers are still navigating numerous scientific and ethical challenges, the vision of printing fully functional, transplantable organs is no longer science fiction. With continued innovation and global collaboration, 3D bioprinting could one day eliminate organ shortages altogether, saving countless lives and revolutionizing modern medicine.

In a world where superfoods, supplements, and scientific advances define the health discourse, María Antonia Cuero's story shines for its elegant simplicity. At 123, María is officially the world's oldest living human—informally surpassing the Guinness World Record holder, France's Jeanne Louise Calment, who reached 122 years of age. Though her age remains in process of verification, the insights she offers are incontrovertibly priceless and scientifically validated.

Born on October 18, 1901, in Colombia, María has witnessed two world wars, numerous technological revolutions, and the dawn of modern medicine. Yet when asked what the secret to her remarkable longevity is, María doesn't refer to a magic pill or a genetic mutation. Rather, she attributes her longevity to two humble foods: fish and bananas—cornerstones of her daily diet, steeped in her coastal upbringing.

Growing up in a big family of 10 siblings by the Mayorquín River, María spent her days surrounded by nature. With fresh fish and tropical fruits readily available, her childhood diet was both organic and full of nutrients—years before these words became health buzzwords. Throughout the decades, she also raised eight children and is now the proud matriarch to 26 grandchildren, 24 great-grandchildren, and 54 great-great-grandchildren.

Although not officially documented by the Guinness World Records, María's identification card in 2012 indicates her birth as October 1901. She became the oldest to get vaccinated in March 2021, at 119 years old, marking yet another incredible achievement to her name.

However, aside from age and figures, it is María's way of living and attitude that provide deep insights into longevity.

Maria's Mindset and Philosophy of Longevity

In an interview on the Colombian television show Los Informantes, María discussed her philosophy of life: laugh frequently, don't worry excessively, remain active, and don't sit around too much. In her opinion, physical activity is essential. Her regimen included walking often, swimming, rowing, and being outdoors—long before fitness monitors or gym memberships were the rage.

These principles echo research in contemporary gerontology. Many studies identify an active life and good social relationships with a lower risk of chronic disease and longer lifespan. María's case supports that emotional well-being, combined with activity, is significant in healthy aging.

Fish

Of all the foods that she ate, fish is what María puts so much stress on. Living next to the river as a child, not only was she afforded the fresh catches each day, but she fished herself very frequently. "Good fish. I would fry the fish and then mix it with coconut and rice," she shared with a journalist.

Fish is a good source of high-quality protein, omega-3 fatty acids, vitamins D and B2 (riboflavin), and minerals like calcium, phosphorus, iron, zinc, iodine, magnesium, and potassium. Omega-3s in oily fish, particularly docosahexaenoic acid (DHA), are recognized to lower inflammation, maintain brain health, and decrease the risk of heart disease.

Scientific studies in the Journal of the American Medical Association have indicated that individuals with high levels of omega-3s live as much as 2.5 years longer on average. Another significant study identified a 40% lower risk of coronary heart disease mortality in those who ate regularly from fish with high levels of omega-3s, a figure further supported by the British Heart Foundation.

Bananas

María's second pillar of diet? Bananas—the smaller, sweeter bocadillo bananas (also referred to as sugar bananas or lady finger bananas). These bite-sized fruits are not only tasty but are full of fiber, antioxidants, potassium, and vital vitamins.

Bananas have been valued for centuries for their digestive and cardiovascular benefits. They help to control blood pressure, balance body fluids, and repair muscle and nerve tissue—all highly beneficial for elderly populations. The tryptophan and vitamin B6 contained in bananas also assist with serotonin formation, the "feel-good" neurotransmitter that enhances emotional well-being.

For María, these bananas were an everyday treat. And as science indicates, eating bananas on a regular basis can help with heart health, boost mood, and assist with muscle recovery.

What We Can Learn From Her Habit?

María's remarkable life is not merely about what she ate—it's about the regularity with which she lived. Her life was based on balance: a modest diet, regular exercise, a positive attitude, and close family ties. To this day, she radiates resilience. When asked what she is afraid of, her answer was moving: "I am not afraid of anything anymore."

This lack of fear and deeply ingrained calmness may also have protective health benefits. Studies have linked chronic stress to increased inflammation and a heightened risk of age-related diseases. María’s philosophy—“don’t worry too much”—may offer more protection than we’ve previously realized.

As the world population ages, María Antonia Cuero's life is an eloquent reminder: the route to longevity may not come in the form of costly therapies, restrictive eating, or vigilant self-tracking. It may sometimes be found in age-old secrets—eat fresh, move frequently, laugh without restraint, and enjoy the little things.

As we wait for official verification of her record-setting age, her legacy already walks tall as an example of how simplicity, persistence, and culture can overcome and thrive. In a world filled with constantly changing health fads, María's legacy encourages us to stop for a moment and ask—what really counts when it comes to living a long, healthy life?

Microplastics—those invisible particles of plastic pollution—may be doing more than just contaminating the environment. According to recent findings presented at the American Heart Association (AHA), they could also be silently contributing to clogged arteries, potentially raising the risk of heart attacks and strokes.

In a study that’s turning heads in the medical community, researchers discovered that fatty plaques found in neck arteries—known as carotid arteries—contained over 50 times more microplastic content compared to plaque-free arteries. Even more concerning, these microplastic concentrations were found to be significantly higher in individuals who had already suffered from a stroke, mini-stroke, or temporary vision loss caused by restricted blood flow.

What Exactly Are Microplastics?

Microplastics are extremely small particles—often less than five millimeters in size—created when larger pieces of plastic break down. They can enter the human body in multiple ways: through the air we breathe, the food we eat, and even skin contact. An even smaller subset, known as nanoplastics, measures under 1,000 nanometers and is completely invisible to the naked eye. Because of their minuscule size, these particles can infiltrate tissues, organs, and potentially disrupt biological functions.

The accumulation of microplastics in arterial plaques introduces a new dimension to the ongoing conversation about cardiovascular risk factors. While high cholesterol, smoking, and hypertension remain the usual suspects, environmental pollutants like microplastics are emerging as a stealthy but significant threat.

A Simple Solution In Your Kitchen?

Amid growing concerns about microplastic contamination, especially in drinking water, scientists have been working on practical ways to mitigate exposure. In 2024, a research team from Guangzhou Medical Centre made a breakthrough. They discovered that a common household activity—boiling water—can significantly reduce microplastic content in tap water.

According to the team, combining boiling with basic filtration can remove up to 90% of nanoplastic and microplastic particles (NMPs) from household water. However, the method’s effectiveness varied depending on the type of water used. In areas where tap water contains higher mineral content, commonly referred to as "hard water," the technique proved especially efficient.

The secret lies in limescale. As hard water is heated, it forms limescale—a chalky white substance—which appears to create a sticky layer that traps microplastic fragments. Researchers found this natural process enhanced the removal of plastic particles from water, offering a practical and affordable solution for most households.

While more research is needed to fully understand the long-term health effects of microplastics, early evidence suggests they may be more dangerous than previously thought—especially for cardiovascular health. Taking simple precautions, such as boiling and filtering drinking water, could help reduce exposure and offer a small but meaningful step toward safeguarding your heart and overall well-being.