According to a study published in the November 6, 2024, online issue of Neurology, the medical journal of the American Academy of Neurology, older people who are sleepy during the day or lose interest in activities due to sleep issues may be more likely to develop a syndrome that can lead to dementia.

People with the syndrome walk slowly and report memory problems, but they do not have a mobility handicap or dementia. Motoric cognitive risk syndrome is a condition that can develop before dementia.

What The Study Found?

The study found that people with excessive daytime sleepiness and a lack of enthusiasm to get things done were more likely to develop the syndrome than people without those sleep-related issues. The study does not prove that these sleep-related issues cause the syndrome, it only shows an association.

“Our findings emphasize the need for screening for sleep issues,” said study author Victoire Leroy, MD, PhD, of Albert Einstein College of Medicine in the Bronx, New York. “There’s potential that people could get help with their sleep issues and prevent cognitive decline later in life.”

How Was It Conducted?

The study included 445 participants, with an average age of 76, who did not have dementia. Participants completed sleep surveys at the beginning of the trial. They were queried about memory problems, and their walking pace was measured on a treadmill at the beginning of the study and then once a year for the next three years.

The sleep assessment included questions about how frequently people had difficulties sleeping because they woke up in the middle of the night, couldn't fall asleep within 30 minutes, or felt too hot or cold, as well as whether they used sleep aids. The question to assess excessive daytime drowsiness asks how frequently people have had problems remaining awake when driving, eating meals, or were engaged in any other activity.

The Findings

In total, 177 participants fit the category of bad sleepers, whereas 268 satisfied the definition of good sleepers.

At the outset of the trial, 42 participants had motoric cognitive risk syndrome. Throughout the trial, 36 more persons got the condition.

35.5% of patients who experienced extreme daytime sleepiness and a lack of enthusiasm developed the syndrome, compared to 6.7% who did not. After accounting for other factors that could influence the risk of the syndrome, such as age, depression, and other health conditions, researchers discovered that people with excessive daytime sleepiness and a lack of enthusiasm were more than three times more likely to develop the syndrome than those who did not have those sleep-related issues.

“More research needs to be done to look at the relationship between sleep issues and cognitive decline and the role played by motoric cognitive risk syndrome,” Leroy said. “We also need studies to explain the mechanisms that link these sleep disturbances to motoric cognitive risk syndrome and cognitive decline.”

A limitation of the study is that participants reported their own sleep information, so they may not have remembered everything accurately.

The study was supported by the National Institute on Aging.

Water remains the most reliable and effective way to keep the body hydrated during hot weather. However, many people have increasingly turned to energy drinks during long workdays or busy schedules, hoping to stay refreshed or energized.

Experts warn that relying on these drinks instead of water can create several health risks, particularly when temperatures are high.

Energy drinks are typically marketed as quick solutions for fatigue and low energy. They often contain high levels of caffeine, added sugars and stimulants that may temporarily increase alertness.

While this short term boost may seem appealing, experts say these drinks are not designed to support proper hydration. When consumed frequently, especially during summer, they can place extra strain on the body rather than helping it stay cool and hydrated.

Dr Arun Sachdeva, an Internal Medicine Specialist at Felix Healthcare in Bengaluru, explains that replacing water with energy drinks during hot weather can interfere with the body’s natural hydration balance.

According to him, excessive consumption of these beverages may contribute to both immediate and long term health concerns, particularly when the body is already losing fluids through sweating.

Higher Risk Of Dehydration

During summer, when sweating already causes significant water loss, this effect may make it harder for the body to maintain proper hydration.

When energy drinks replace water intake, the risk of dehydration increases. Common symptoms of dehydration include fatigue, dizziness, headaches and dry mouth. In more severe cases, dehydration can also affect concentration, physical performance and overall wellbeing.

Excessive Stress On The Heart

For people who already have high blood pressure or existing heart conditions, excessive intake of energy drinks could increase the risk of heart palpitations or irregular heart rhythms. Experts therefore recommend limiting the consumption of these beverages, particularly during periods of intense heat.

High Sugar And Empty Calories

Frequent spikes in blood sugar levels may gradually increase the risk of metabolic disorders. Over time, consistently high sugar consumption can contribute to health problems such as obesity and type 2 diabetes.

Therefore, doctors advise paying attention to sugar content in beverages, especially during hot weather when people tend to drink more fluids throughout the day.

Sleep Disruption And Energy Crashes

Instead of providing sustained energy, regular consumption of energy drinks may lead to temporary stimulation followed by sudden drops in energy levels.

This cycle can leave individuals feeling even more tired later in the day, creating a pattern where they rely on more caffeinated drinks to stay alert.

Kidney Health And Hydration

When the body does not receive enough water, the kidneys may struggle to function efficiently. Over time, poor hydration can increase the risk of kidney related problems and may affect the body’s ability to regulate fluid levels effectively.

Why Water Remains The Best Choice

Doctors emphasize that water remains the safest and most effective drink for maintaining hydration during summer. It helps regulate body temperature, supports organ function and replaces fluids lost through sweating without introducing excess caffeine, sugar or stimulants.

Energy drinks may occasionally provide a quick boost of alertness, but they should not be used as a substitute for water. Maintaining regular water intake throughout the day remains one of the simplest and most effective ways to support overall health during hot weather.

Late nights at the office, quick dinners made from instant noodles or packaged snacks and constant deadline pressure are often treated as normal parts of professional life, but doctors say these habits may gradually affect kidney health.

Nephrologists report that routine health screenings are increasingly detecting early signs of kidney stress in people in their late 20s to 30s, even among those without traditional risk factors such as diabetes, smoking or a family history of kidney disease.

According to nephrologist Dr Kristin George, some patients show warning indicators such as elevated creatinine levels, high blood pressure or traces of protein in the urine.

Creatinine is a waste product filtered out by the kidneys and rising levels may indicate that the organs are not removing waste as efficiently as they should.

Doctors say that when lifestyle patterns are examined more closely, prolonged work stress, sedentary routines, irregular meals and frequent late-night snacking often emerge as common factors.

Kidney Disease Is A Growing Global Concern

Chronic kidney disease, or CKD, involves the gradual loss of kidney function over time and can eventually lead to kidney failure if it is not detected early.

Health experts warn that CKD could become one of the leading causes of death globally in the coming decades. Diabetes and hypertension account for a large proportion of cases and according to the International Society of Nephrology these two conditions combined contribute to nearly two-thirds of chronic kidney disease cases worldwide.

Doctors also note that prolonged stress may indirectly increase these risks because long-term elevations in stress hormones such as cortisol can raise blood pressure and disrupt metabolic balance.

Processed Foods And Late-Night Eating

Late-night meals frequently include instant noodles, chips, processed meats or packaged snacks, many of which contain significant amounts of sodium.

Sodium helps regulate fluid balance, but excessive intake forces the kidneys to work harder to maintain stable blood pressure. The World Health Organization estimates that most adults consume nearly twice the recommended daily sodium intake, largely because of processed foods.

Doctors say that consistently high salt intake can gradually increase blood pressure and place additional strain on kidney function.

Sedentary Work And Poor Hydration

Hydration habits and prolonged sitting are additional concerns among office workers. Many professionals rely heavily on coffee, energy drinks or sugary beverages during long workdays, often replacing plain water as the main source of fluid intake.

While moderate caffeine consumption is generally considered safe, relying mainly on caffeinated drinks can contribute to mild dehydration, which may affect blood circulation through the kidneys and increase the likelihood of kidney stones.

At the same time, many corporate jobs require employees to remain seated for extended periods. Sedentary routines have been linked to obesity, impaired glucose metabolism and high blood pressure, all of which are major contributors to kidney disease.

Early Signs Often Go Unnoticed

Kidney disease often develops silently in its early stages, which means many people remain unaware of the problem until significant damage has occurred.

Early kidney dysfunction may progress quietly for years before symptoms appear, and by the time signs such as swelling, fatigue or changes in urination become noticeable, kidney function may already be reduced.

Doctors therefore recommend periodic screening tests, including serum creatinine measurements, estimated glomerular filtration rate (eGFR) tests and urine albumin tests, which can detect early signs of kidney damage.

Small Changes Can Make A Difference

Health experts say that protecting kidney health often begins with small lifestyle changes. Reducing processed food consumption, limiting excessive salt intake, staying adequately hydrated and maintaining regular sleep schedules can all support kidney function.

Taking short movement breaks during long work hours and managing stress through regular physical activity or relaxation techniques may also help reduce the long-term strain that modern work routines place on the body.

Doctors emphasise that kidney disease usually develops gradually, which means recognising and adjusting everyday habits early may help many young professionals protect their kidney health.

Heart disease remains the leading cause of death in India, often affecting people nearly a decade earlier than in Western populations.

Recent cholesterol management recommendations from the American Heart Association (AHA) and related global guidelines emphasize aggressive control of LDL cholesterol — the so-called “bad cholesterol.” For Indians, these recommendations carry particular importance.

Studies consistently show that South Asians have a higher tendency for premature coronary artery disease. Even individuals who appear relatively lean may have underlying metabolic risk factors such as insulin resistance, abdominal obesity, and elevated triglycerides. Because of this inherent susceptibility, the same cholesterol levels that may appear “borderline” in Western populations can translate into a significantly higher cardiovascular risk in Indians.

What Does The New Guidelines Say

The newer guidelines shift the focus away from merely treating cholesterol numbers to assessing an individual’s overall cardiovascular risk.

Factors such as diabetes, smoking, blood pressure, family history of early heart disease, and age are considered together. If a person falls into a higher-risk category, doctors now recommend lowering LDL cholesterol more aggressively than before.

For people who already have established heart disease, the goal is particularly strict. LDL cholesterol is ideally reduced to levels below 55 mg/dL. Achieving such targets often requires not only lifestyle changes but also medications such as statins, and in some cases, newer therapies that further lower cholesterol levels.

How Indians Can Prevent Heart Disease

For Indians without diagnosed heart disease, prevention becomes the key message. Regular screening after the age of 30–35 years is increasingly advisable, especially if there is a family history of heart disease or diabetes. Diet also plays a central role: reducing trans fats, limiting refined carbohydrates, increasing fibre intake, and maintaining a healthy body weight can significantly influence cholesterol levels.

Equally important is regular physical activity. Even 30 minutes of brisk walking most days of the week can improve lipid profiles and reduce cardiovascular risk.

The key takeaway is simple: Indians develop heart disease earlier and often at lower cholesterol levels.

The newer AHA recommendations reinforce the need for earlier screening, individualized risk assessment, and more proactive cholesterol management to prevent future heart attacks.