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.

The bulge that appears when an internal organ pushes through a weakened muscle wall will not recede with rest or medication—it will, in most cases, grow larger and more uncomfortable over time. Surgery is the only definitive treatment. What has changed significantly in recent years is what that surgery looks like and what recovery from it requires.

Dr Rajesh Sharma, Director – General Surgery, Minimal Access & Bariatric Surgery, CK Birla Hospitals, Jaipur, in an interview with Health and Me, spoke about the introduction of robotics in hernia treatment and how it can benefit patients.

How hernia surgeries are becoming less painful

With advances in surgical technology, minimally invasive approaches have significantly improved patient outcomes. One of the most important developments in recent years is robotic-assisted hernia surgery using the da Vinci Surgical System. In robotic surgery, the surgeon operates from a console equipped with a high-definition, three-dimensional, magnified view of the surgical field. The robotic system translates the surgeon’s hand movements into extremely precise movements of miniaturised instruments inserted through small incisions. The system also filters natural hand tremors and provides a greater range of motion than the human wrist, enabling meticulous dissection and suturing.

For hernia repair, these capabilities allow surgeons to perform delicate steps such as accurate defect closure and optimal mesh placement, which are important for the long-term durability of the repair.

Benefits for patients

Robotic hernia repair offers several advantages for patients:

1. Smaller incisions and minimal scarring
2. Reduced postoperative pain
3. Lower risk of wound complications
4. Shorter hospital stay
5. Faster return to normal activities

Because the procedure is minimally invasive, most patients experience earlier mobilisation and quicker overall recovery compared with traditional open surgery. Robotic surgery is particularly useful in complex, recurrent, or large ventral hernias, where precise reconstruction of the abdominal wall is important. While not every hernia requires a robotic approach, the technology expands the surgeon’s ability to perform advanced minimally invasive repairs with improved ergonomics and visualisation.

The future of hernia surgery

The integration of robotic platforms such as the da Vinci system represents a major step forward in modern general surgery. By combining surgical precision with minimally invasive techniques, robotic hernia repair aims to enhance patient comfort, improve recovery, and deliver durable surgical outcomes.

The liver and heart are two of the most vital organs of the body, and although they perform very different functions, they are closely connected. When the liver is not functioning properly, it can place significant stress on the heart and circulatory system of the body.

Liver disease not only affects the digestion process, metabolism, and detoxification but can also trigger serious cardiovascular changes that may go unnoticed in the early stages. Understanding this particular connection is significant for timely diagnosis and better overall care.

The Liver-Heart Connection

The liver helps to regulate the flow of blood, fluid balance, cholesterol metabolism, and inflammation as well. When liver disease develops—whether due to fatty liver, hepatitis, cirrhosis, or alcohol-related damage—all these processes become disturbed.

As a result of the same, the heart may have to work harder to maintain circulation, while blood vessels may also undergo certain changes that impact blood pressure and delivery of oxygen as well.

Changes In Blood Circulation

In well-advanced liver disease, especially cirrhosis, the flow of blood through the liver becomes restricted. This can also increase pressure in the portal vein, a condition known as portal hypertension. At the same point in time, blood vessels in the rest of the body may also widen, causing a drop in effective blood pressure.

To compensate, the heart pumps faster and harder. With the passage of time, this constant strain can weaken cardiac function and even lead to a condition sometimes referred to as cirrhotic cardiomyopathy, where the heart does not respond normally under stress.

Fluid Retention And Heart Stress

Liver disease often causes the body to retain both salt and water. This can also lead to swelling in the legs, abdomen, and surrounding tissues as well. Extra fluid in the body increases the workload on the heart, making it more difficult for it to pump blood in an efficient way. In severe cases, this may also contribute to shortness of breath, fatigue, and worsening cardiovascular strain.

Inflammation And Metabolic Impact

Some of the conditions, such as non-alcoholic fatty liver disease, are also linked with diabetes, obesity, high levels of cholesterol, and high blood pressure – all of which are the major risk factors for heart disease. Chronic inflammation, well-associated with liver damage, may further increase the risk of atherosclerosis and other cardiac complications.

GLP-1 receptor agonist drugs such as Ozempic and Wegovy have shown significant benefits for people with diabetes and obesity. However, not everyone experiences the same results.

Now, a study suggests that this variation may be due to genetic resistance, which means that some people are biologically less responsive to these medications, making these drugs less effective.

Also Read: NAFLD to MASLD: Experts Explain Why This Common Yet Dangerous Liver Condition Got Renamed

The new study by scientists at Stanford University in the US showed that about 10 per cent of the general population carry genetic variants that lead to what the researchers called “GLP-1 resistance”.

The GLP-1- receptor agonist drugs typically work by mimicking the hormone GLP-1 (glucagon-like peptide-1), which naturally helps regulate blood sugar by stimulating insulin release. The process slows the emptying of the stomach and reduces appetite.

However, in individuals with certain genetic variants, the team found that higher levels of GLP-1 did not regulate blood sugar better.

The researchers noted that the findings, published in the journal Genome Medicine, may be key to developing new therapies for people with GLP-1 resistance.

“There are a whole class of medications that are insulin sensitizers, so perhaps we can develop medications that will allow people to be sensitized to GLP-1s or find formulations of GLP-1, like the longer-acting versions, that avoid the GLP-1 resistance,” said Anna Gloyn, professor of pediatrics and of genetics at Stanford Medicine.

The Gene Linked to GLP-1 Resistance

Also read: Foundayo: US FDA Approves Eli Lilly’s GLP-1 Weight Loss Pill

To zero in on the gene resistant to GLP-1 drugs, the team conducted experiments in humans. They traced this resistance to a PAM variant known as p.S539W.

PAM (peptidyl-glycine alpha-amidating monooxygenase) is an enzyme that is uniquely capable of activating many hormones in the body, including GLP-1.

While the researchers suspected that people with the PAM variant would have lower levels of GLP-1 in their blood, it actually increased levels of GLP-1. Although the exact mechanism is still unclear, experiments in both humans and mice confirmed signs of reduced response to GLP-1.

Analyzing diabetes drug trial data, they found that individuals with these variants were less able to lower their blood sugar levels even after six months of treatment. This suggests that despite having more circulating GLP-1, their bodies are less responsive to it.

“When I treat patients in the diabetes clinic, I see a huge variation in response to these GLP-1-based medications and it is difficult to predict this response clinically,” said Mahesh Umapathysivam, an endocrinologist and clinical researcher at Adelaide University in Australia.

“This is the first step in being able to use someone’s genetic make-up to help us improve that decision-making process,” he added.

Also read: Can Weight Loss Jabs Surge Divorce Rates? What Experts Are Saying

Importantly, participants with the PAM variants did not respond differently to other common diabetes treatments, including sulfonylureas, metformin, and DPP-4i.

The finding may help develop precision medicine, the researchers said. Knowing ahead of time who is likely to respond would help patients get on the right drugs faster, Gloyn said.

Reasons Why Ozempic May Not Help All People Lose Weight

Ozempic is primarily indicated for type 2 diabetes management. But some doctors may prescribe it for weight loss in appropriate patients without diabetes.

Previous research has shown that medical conditions such as sleep apnea, along with certain common medications, such as antidepressants, steroids, and contraceptives, can hamper the process of shedding extra pounds.

Another major reason that can hamper weight loss is the side-effects of these drugs that can prompt a person to halt their prescription mid-way.