Weight loss is usually considered a good thing, unexpected and extreme weight loss can be a sign of something in your body going very wrong. There could be some underlying issues that are causing your body to pull weight and nutrition from your muscles and body fat to keep you going. As you grow old, your limbs grow weaker, and same for your muscles, so you do lose some weight as you age, but losing a lot of it too quickly could be a sign of something much worse, Dementia. A recent study published in JAMA Network Open 2025 Cardiometabolic Trajectories Preceding Dementia in Community-Dwelling Older Individuals, has identified potential early indicators of dementia, including significant weight loss and specific digestive changes, appearing years before noticeable cognitive decline.

The study showed that people who later got dementia had their Body Mass Index, or BMI, go down faster than those who stayed healthy. BMI is a way to see if someone's weight is healthy for their height. This drop in BMI started happening many years before they were told they had dementia, sometimes as early as 11 years ago. Also, these people often started with a lower BMI to begin with. So, even though everyone's weight might change a little as they get older, the people who developed dementia had a much bigger and faster weight loss.

What Are Some Other Indicators Of Dementia?

Along with their BMI, the size of their waist also changed. People who ended up with dementia had smaller waist sizes, and this difference was noticeable about 10 years before they were diagnosed. This means that their bodies were changing in ways that showed up long before they or their doctors noticed any problems. So, not only was there weight loss, but also a loss of abdominal fat. This measurement is important because fat around the waist can be related to other health issues.

The study also found changes in their blood. Specifically, the "good" cholesterol, called HDL, went up in people who developed dementia. This increase happened about five years before they were diagnosed. It's tricky because HDL is usually seen as a good thing for your heart. But in this case, it seems like it might be a sign of changes happening in the brain. Scientists are still trying to understand why this happens.

Weight Loss Doesn’t Cause Dementia, Dementia Causes Weight Loss

When we see that people with dementia lose weight, it's easy to think that the weight loss is what caused dementia. But experts think it's the other way around. They call this "reverse causation." This means that the brain changes that cause dementia also cause people to lose weight. The brain changes can affect things like appetite, how the body uses food, and how people go about their daily lives. For example, people might forget to eat, have trouble making meals, or move around less.

While the study revealed a lot about different indicators of dementia and bodily changes, there are many limitations to the study. Everyone loses some weight as they get older. So, it's hard to know when weight loss is just a normal part of aging and when it's a sign of dementia. The study found that people with dementia lost weight faster, but it's still tricky to tell the difference in everyday life. Doctors need to look at other things, like memory tests, to figure out if someone's weight loss is a cause for concern.

If someone is losing weight without trying, and they're also having problems with their memory or thinking, it's important to talk to a doctor. It's not just about the weight loss; it's about the whole picture.

Tattoos have long raised health concerns. While they are generally safe when done under proper hygienic conditions, they still pose risks related to safety, the introduction of foreign substances into the body, and potential long-term effects, including cancer.

However, contrary to previously known health risks, a study has claimed that tattoos can actually prevent the risk of the deadliest form of skin cancer – melanoma.

The findings led by researchers from the Huntsman Cancer Institute at the University of Utah in the US showed that having two or more tattoo sessions decreased the risk of both invasive and in situ melanoma. In situ melanoma means the cancer cells remain on the skin’s surface and are more easily removed.

“We see people with two, three, and four tattoo sessions having decreasing risk, and that’s a stronger pattern than the increased risk with just one session,” said Jennifer Doherty, a researcher at Huntsman Cancer Institute.

But “this isn’t a black and white case of ‘get more tattoos, and you could lower your risk of melanoma,’” said Rachel McCarty, post-doctoral scientist at the International Agency for Research on Cancer.

Also read: Shocking! Man Gets A Tattoo On His Neck; Months Later, Flesh Turns Black And Rots Away

How Tattoos Can Prevent Melanoma

The researchers noted that the beneficial effects may be because people with several tattoos are more cautious with sun safety and take better care of their skin.

Tattoos could also form a physical barrier that blocks ultraviolet radiation or cause an immune response against precancerous cells, the researchers explained in the paper.

McCarty said those with tattoos should continue making informed decisions about skin protection.

“Tattoo artists already advise their clients to wear sunscreen and sun protection to prevent tattoos from fading,” McCarty said.

“We know wearing sunscreen is an important safety step for everyone, even without tattoos. But it’s also important for those with tattoos to take extra precautions to prevent any additional harmful components from forming in the skin when pigments break down from UV exposure.”

The researchers have called for more studies to understand the beneficial effects of tattoos.

An earlier project from Doherty’s team and a Swedish study both suggest that tattooing could be connected to an increased risk of certain blood cancers. The study also indicated a greater cancer risk for those with larger tattoos.

What Is Melanoma?

Melanoma is a serious type of skin cancer that develops in melanocytes, the cells responsible for producing melanin, the pigment that gives skin its color. While it can occur anywhere on the skin, it often develops on areas exposed to the sun, such as the face, arms, back, and legs.

Melanoma can also appear in less-exposed areas, like the soles of the feet, palms, or under the nails, particularly in individuals with darker skin tones. Although rare, melanoma may develop in the eyes, mouth, or internal organs.

The condition can be life-threatening if it spreads to other parts of the body, but early detection significantly increases the chances of successful treatment. It is often linked to excessive ultraviolet (UV) radiation from the sun or tanning beds, though genetic predisposition and family history also play roles.

Symptoms Of Melanoma

The primary sign of melanoma is a new or changing mole, freckle, or skin lesion. The "ABCDE rule" helps identify suspicious moles:

• Asymmetry: One half does not match the other.
• Border: Irregular or scalloped edges.
• Color: Multiple shades or unusual colors like red, white, or blue.
• Diameter: Larger than 6 mm (about the size of a pencil eraser).
• Evolving: Changes in size, shape, or color.

The 28 to 35-year-old age group in urban India now experiences lifestyle diseases because people now live their lives incorrectly instead of aging at a higher rate. Diabetes, high blood pressure, fatty liver, and PCOD have become routine in those under 40, developing these conditions without showing any symptoms.

Hidden Metabolic Risks

A normal BMI no longer guarantees good health. The visceral fat around organs leads to both inflammation and metabolic dysfunction. Chronic stress increases cortisol levels, resulting in insulin resistance, while people who sleep less than six hours experience further metabolic disruptions. Skipping regular check-ups leads to delayed detection of health problems.

Women’s Health And Preventive Screening

PCOS is a silent condition affecting almost 20 percent of urban Indian females. Regular consultations, including HPV vaccination, Pap smear, and hormonal evaluation, are essential.

After 25, routine tests that include fasting sugar, HbA1c, lipid profile, liver enzymes, thyroid function, Vitamin D, and B12 help detect risk early. A whole abdomen ultrasound helps detect fatty liver and silent organ damage early.

The process of detecting medical conditions at an early stage enables doctors to reverse the health issue, but patients who receive it late need permanent treatment.

Clean Eating: Trend vs Truth

The "clean eating" trend needs proper representation because it exists through incorrect information. In reality, traditional Indian dishes, such as dal, chawal, and sabzi, provide complete nutritional value. Quinoa and kale do not show any advantages over each other.

The "healthy" packaged snacks, such as multigrain biscuits and protein bars, exist mainly as marketing tools. People accept ultra-processed foods because cloud kitchens and delivery services make these foods available for consumption at home. Hidden ingredients like maida, refined oils, and excess sugar are present in everyday foods such as bread, biscuits, mithai, and even packaged atta.

The Way Forward

There is no superfood or perfect diet. Supplements cannot replace nutrition. Whole foods, home-cooked meals, timely screening, and consistent habits remain the foundation of good health. Turning 30 does not have to feel like 50, but it requires awareness and intentional choices starting now.

World Health Day is observed annually on April 7 to mark the founding day of the World Health Organization (WHO) in 1948 for public health worldwide.

The Day raises awareness about global health issues and highlights the importance of preventive care, healthy lifestyles, and equal access to healthcare for all.

On World Health Day 2026, the WHO urged people to renew their commitment to working together and supporting science as the twin engines driving better health.

“Science is one of humanity’s most powerful tools for protecting and improving health,” said Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization.

“People in every country live longer and healthier lives on average today than their ancestors did, thanks to the power of science. Vaccines, penicillin, germ theory, MRI machines, and the mapping of the human genome are just some of the achievements that science has delivered that have saved lives and transformed health for billions of people.”

World Health Day 2026: History

World Health Day commemorates the formal establishment of the WHO in 1948. The creation of an independent, international health body was proposed by Brazil and China in 1945.

The WHO Constitution, signed in 1946 by 61 nations, officially came into force on April 7, 1948. In the last 78 years of its existence, the WHO has directed and coordinated the world’s response to health emergencies such as :

• Severe Acute Respiratory Syndrome (SARS)
• Ebola outbreak
• COVID-19 pandemic
• mPox

In addition, it has also led global efforts against communicable diseases (like malaria, HIV, polio) and works on non-communicable diseases (e.g., cancer, diabetes).

The WHO works towards universal health coverage, with a

• focus on primary health care
• improving access to essential medicines and health products
• training the health workforce and advising on labour policies
• improving monitoring, data, and information.

World Health Day 2026: Theme

World Health Day 2026 will be observed under the theme “Together for health. Stand with science.”

The theme highlights the role of the WHO in promoting public health, which has led to improvements in the global maternal mortality rate, falling by more than 40 percent since 2000, and a reduction of over 50 percent in deaths among children under five.

The global health body lauded the advances in technology and scientific knowledge and skills, due to which the once-life-threatening health challenges – such as elevated blood pressure, cancer diagnoses, or HIV infection – have turned into manageable health issues.

The WHO stated that science was behind every health progress, which led to improvements in global health and lives. This includes the development of

• anesthesia
• safer medicines and affordable vaccination
• screening technologies, such as electronic blood pressure monitors and mammography tools.

WHO and its partners generate and translate evidence across a wide range of health priorities, from infectious diseases and chronic conditions to mental health, nutrition , and environmental risks, supporting countries to deliver effective, equitable care.