A new study published in The Lancet Digital Health suggests that biological age of different organs could predict a person's risk of diseases such as cancer, dementia, and heart disease than their actual chronological age. The research analyzed long-term data from Whitehall II study, which had been followed by over 10,000 British adults for more than 35 years.

The blood plasma samples were collected between 1997 and 1999 from participants between ages 45 to 69. Researchers have now examined a follow up data from 6,235 participants, who were by then aged 65 to 89. This was done to see how aging of specific organ may correlate with the development of diseases over two decades.

What Organs Were Studied?

The study measured the biological age of nine key organs, including:

• Heart
• Blood vessels
• Liver
• Immune system
• Pancreas
• Kidneys
• Lungs
• Intestines
• Brain

The researchers were able to find that different organs aged at different rates in different people. In many of the cases multiple organs showed signs of faster aging within the same individual. What is important to note is that those with accelerated aging in certain organs had a higher risk of developing 30 out of the 40 age-related diseases the study had tracked.

Organ Aging And Disease Risk

Some organ-disease connections were expected—people with rapidly aging lungs were more likely to develop respiratory diseases, and those with aging kidneys had an increased risk of kidney-related conditions. However, the study also found less obvious associations.

For example, individuals with fast-aging kidneys were more prone to diseases in other organs, such as the liver and pancreas. Additionally, multiple fast-aging organs were linked to an increased risk of kidney disease.

One of the most surprising findings was that dementia risk was not best predicted by an aging brain but rather by the immune system’s biological age. This suggests that factors such as chronic inflammation and immune health may play a critical role in neurodegenerative diseases.

What Is Organ Specific Blood Tests?

The study also highlights the important of the potential of developing blood tests that could assess the biological age of specific organs. Unlike previous complex methods that measured the organ health, this new approach could make things simple to detect early signs of disease.

The leader author of the study Mika Kivimaki, who is also a professor at the University College London's Faculty of Brain sciences pointed out that such tests could be helpful when it comes to guiding personalized healthcare. In a news release, Kivimaki said, "They could advise whether a person needs to take better care of a particular organ and potentially provide an early warning signal that they may be at risk of a particular disease."

The study reinforces the idea that aging does not affect all organs equally and that looking beyond chronological age could offer better insights into disease prevention. By understanding which organs are aging more rapidly, medical professionals may be able to recommend targeted interventions for individuals at higher risk of specific conditions. Future advancements in organ-specific blood testing could revolutionize how we detect and manage age-related diseases, potentially leading to more personalized healthcare strategies.

Former New York City Mayor Rudy Giuliani has been discharged from the ICU but will remain in the hospital for “some time” as he recovers from pneumonia, according to his spokesperson.

In a post on social media platform X, spokesperson Ted Goodman said Giuliani, 81, was hospitalized earlier this week in critical but stable condition.

Giuliani, who served as New York City's mayor from 1994 to 2001, was previously diagnosed with restrictive airway disease following the infamous 9/11 terrorist incident, where he “took down the mafia, saved New York City, and ran toward the towers on September 11th".

However, the incident left Giuliani with lasting health complications, Goodman said, adding that the former NYC Mayor "is recovering from pneumonia”.

“The virus quickly overwhelmed his body, requiring mechanical ventilation to maintain adequate oxygen and stabilize his condition,” Goodman said.

Calling him the "same fighter he's always been, and he's winning this fight,” Goodman said that the "mayor and his family appreciate the outpouring of love and prayers sent his way”.

Notably, Giuliani is a longtime ally of President Donald Trump. In 2025, Trump also announced awarding Giuliani with the Presidential Medal of Freedom, the country's highest civilian honor.

What Is Pneumonia?

Pneumonia is an inflammatory condition of the lung tissue, most often caused by infections. It can affect one or both lungs and can range from mild to life-threatening, especially in vulnerable populations like the elderly, young children, or those with underlying health conditions.

There are several types of pneumonia, classified based on their causes—bacterial, viral, and fungal—and each has distinct patterns of transmission and severity.

What Causes Pneumonia?

Pneumonia is not a single disease but a syndrome resulting from various infectious agents:

Bacterial Pneumonia: This is the most common type, often developing as a secondary infection after a cold or flu. Streptococcus pneumoniae is the most frequent culprit.

Viral Pneumonia: Caused by viruses like influenza, respiratory syncytial virus (RSV), and SARS-CoV-2 (COVID-19), this type often starts in the upper respiratory tract and spreads to the lungs.

Fungal Pneumonia: This type is less common and usually affects individuals with weakened immune systems. It's typically contracted through environmental exposure, such as to soil or bird droppings.

Early Warning Signs You Shouldn’t Ignore

Pneumonia can be insidious. It often begins with symptoms that mimic the flu: headache, fatigue, and fever. But as the infection progresses, signs become more serious:

• Persistent cough with green, yellow, or even bloody mucus
• Shortness of breath
• Chest pain, especially when breathing or coughing
• High fever, chills, and night sweats
• Confusion, especially in the elderly
• Nausea or loss of appetite

In a shocking case, a 68-year-old woman in the US who took antibiotics for inflammation developed an alarming skin reaction, leaving her skin black and blue.

The unusual case, reported in the New England Journal of Medicine (NEJM), noted that the woman developed dark patches on her skin very quickly, within two weeks of starting the drug — a course of minocycline, an oral antibiotic.

Two weeks before the onset of the skin changes, she had started taking 100 mg daily of oral minocycline to treat rosacea, which causes chronic inflammation and redness of the face.

Over the course of six weeks, dark patches appeared on the woman's arms and legs. It ranged from a bruise-like dark blue and purple to jet-black.

Her doctors also noticed blue-gray "hyperpigmentation" on the woman's forearms and shins, as well as on the sides of her tongue. The woman noted that the patches had first appeared on her legs before cropping up elsewhere.

Rosacea is a common skin condition that leads to the formation of small, red bumps and pus-filled pimples on the skin, and evidence suggests that antibiotics like minocycline can help eliminate those bumps.

Writing in the paper, Aarti Maharaj, from the University of Florida, shared that hyperpigmentation is a well-established side effect of minocycline, in which patches of skin become darker than the skin surrounding them.

While the condition typically develops after months of treatment, it may rarely occur with shorter courses, the expert said.

In this case, the woman was diagnosed with type II minocycline-induced hyperpigmentation, which is "defined by blue-gray discoloration of normal skin on the extensor surfaces of the arms and legs," according to Maharaj.

Doctors advised the patient to stop taking minocycline and to avoid sun exposure, as ultraviolet light is thought to worsen hyperpigmentation in these cases. Six months later, the hyperpigmentation in her limbs had "abated somewhat" but was still visible.

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Minocycline And Hyperpigmentation

According to Mayo Clinic, minocycline belongs to the class of medicines known as tetracycline antibiotics. It works by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections.

It causes hyperpigmentation:

• Type I shows up as blue-black discoloration on scarred or inflamed skin on the face, rather than on healthy skin on the limbs.
• Type II leads to blue-gray discoloration of normal skin on the extensor surfaces of the arms and legs.
• Type III appears as muddy-brown pigmentation on sun-exposed areas of the body.

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According to a frequently cited study, the side effect shows up in about 28 per cent of people in this population, although that research included only a small number of patients. The true incidence of the side effect is unclear, Live Science reported.

Once a person stops taking minocycline, the pigmentation can take months to years to dissipate, reports suggest. In type III cases, it sometimes never goes away.

Kidney disease is one of those conditions where myths quietly cause a lot of damage. Misinformation about symptoms, diet, medicines, and treatment can delay diagnosis, worsen kidney health, and prevent people from taking simple steps that could protect their kidneys early on.

Myth: Kidney disease is rare.

Fact: It’s actually quite common, but many people don’t even know they have it.

Myth: You’ll feel it if something is wrong.

Fact: Early chronic kidney disease (CKD) is usually silent, and symptoms often appear only after significant damage has already occurred.

Even something as simple as a slightly raised creatinine is often ignored.

Fact: Even mild elevations can signal a meaningful loss of kidney function.

Myth: Dialysis cures kidney disease.

Fact: Dialysis does not cure kidney disease. It only replaces some kidney functions to help keep the body in balance.

Myth: If dialysis is needed in Acute Kidney Injury (AKI), it means lifelong dialysis.

Fact: Dialysis in AKI may be temporary. In advanced CKD, however, it is often long-term or lifelong unless a kidney transplant is performed.

Diet myths don’t help either

Myth: More water is always better.

Fact: Hydration is important, but too much water isn’t helpful for everyone—especially in advanced CKD, where fluid intake may need to be restricted.

Myth: All kidney patients should eat the same diet.

Fact: Kidney diets are highly individualized. High-protein diets, often seen as healthy, can increase stress on damaged kidneys. Plant-based proteins can be a suitable alternative in many cases.

Myth: Herbal or indigenous remedies can cure or prevent kidney disease.

Fact: Many of these remedies are unregulated and may actually worsen kidney damage because of hidden toxins or heavy metals.

Myth: Painkillers are harmless.

Fact: Regular use of medicines like NSAIDs can quietly damage the kidneys over time.

At the end of the day, kidney disease isn’t just about treatment—it’s about awareness. Getting the facts right can make all the difference.