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.
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.”
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.
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.
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For years, people have joked about how women seem to enjoy showers that could probably cook noodles. If you are someone who loves cranking up the water temperature until the bathroom looks like a steam room, you may have wondered whether there is an actual reason behind it. According to UK surgeon and content creator Dr Karan Rajan, the answer lies in biology. Women are not simply choosing scalding showers for fun. Their bodies are wired differently, and that affects how they experience temperature.
Dr Rajan explains that, on average, women have a slightly higher core body temperature than men. It might sound like this would keep them warmer, but in reality, it does the opposite. When the core is warm but the surrounding environment is cool, that contrast makes cold air feel even colder. So a mildly chilly room may feel more uncomfortable for women, leading them to turn to hotter showers to compensate.
This idea has gone viral online. In a popular TikTok clip, creator couple Micah and Sarah joked about preparing for a shared shower. Micah pretended to train for the extreme heat by dipping his hand in boiling water. The internet quickly chimed in with comments like “My husband says I am training for hell” and “He calls it lobster time”. The jokes were relatable because many couples experience this temperature divide, but not many knew the science behind it until now.
Hormones play a major role too. Estrogen affects blood flow to the extremities, which includes hands, feet and even earlobes. Research shows that women’s extremities can be up to three degrees colder than men’s. Dr Rajan points out that this becomes more noticeable during ovulation when estrogen levels peak. Women on hormonal birth control may also experience increased sensitivity because estrogen stays higher for longer periods.
So even when the core stays warm, the toes and fingers may feel unusually cold. A very warm shower becomes a quick and comforting fix for this temperature imbalance.
Another biological factor is metabolic rate. Women generally have a lower resting metabolic rate than men, meaning they produce less body heat throughout the day. This naturally makes them feel colder and more drawn to hotter water while bathing. Women also tend to have more body fat and less muscle mass, which influences how the body responds to temperature changes.
Australian GP Dr Jasmina Dedic Hagan supports these findings, as reported in Body and Soul. She explains that women typically have warmer cores, cooler skin, and a higher layer of insulating fat around the body. On top of that, they have reduced circulation in the extremities because the body prioritises keeping reproductive organs warm. With less muscle mass, the body’s heat-producing brown fat does not function in quite the same way as it does in men.
Not entirely. While some women truly enjoy the sensation of a very hot shower, much of it is tied to biology. From hormones to metabolism to circulation, several factors work together to make warmer showers feel soothing and sometimes even necessary. So the next time someone teases you about loving lava-level water, you can tell them it is simply science at work.
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When you are burning up, even a simple shower can feel confusing. Should you cool your body quickly with cold water or soothe your aches with something warm? Fever is a natural defense mechanism, but the symptoms it brings can make you feel miserable. The right water temperature can help ease discomfort and support your recovery.
Below is a simple breakdown of how fever affects your body, followed by practical shower tips and additional ways to safely bring your temperature down.
During an infection, your immune system releases chemicals called pyrogens. These signals tell the hypothalamus, which is your internal thermostat, to raise your core temperature. The added heat slows the growth of certain viruses and bacteria and helps immune cells work more efficiently.
Knowing this matters because water that is too cold can trigger intense shivering, which drives your temperature higher. Water that is too hot can widen your blood vessels and increase sweating, which may worsen dehydration.
Each water temperature works differently with a fever. Understanding these differences helps you choose what your body needs at that moment.
Cold showers cool your skin quickly. They may feel refreshing if you are overheated, but they often trigger shivering. That shivering can raise your core temperature and is especially risky in children.
Lukewarm or tepid showers are the safest choice for most people with fever. This temperature allows gentle heat loss through the skin without causing shivering. It helps you cool down gradually while keeping your body comfortable.
Warm or hot showers can help relieve muscle aches or sinus congestion, especially for adults. However, they can increase sweating and may slightly raise your temperature. Avoid them if you are already overheated or dehydrated.
Your body is already working hard to fight the infection. Light activity can raise your temperature further, so give yourself time to rest and recover.
Fever increases the risk of dehydration, especially if you have vomiting or a poor appetite. Sip water, oral rehydration solutions, or electrolyte drinks. Chilled fluids can also help lower your temperature.
Keep your room slightly cool and wear loose, breathable clothing. If you have chills, use a light blanket but avoid overheating. You can place a cool cloth on your forehead or under the arms for short intervals.
Over the counter fever reducers like acetaminophen and ibuprofen can safely lower fever. Always follow dosage guidelines. Avoid aspirin in children because it can lead to Reye's syndrome.
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Turns out, kidney disease is not just a ‘kidney’ problem anymore, it can, in fact, affect other organs, and could even be linked to other chronic conditions, revealed a recent study.
In the US, more than 1 in 7 adults are affected by chronic kidney disease or (CKD). This means that 35.5 million Americans are affected by it, and what makes it worse is that 9 out of 10 people do not even know they have CKD, says the Centers for Disease Control and Prevention (CDC). Amid all these numbers thrown on to, something more concerning lies. A recent Lancet study shows a link between the rise in CKD and other chronic diseases. We are talking about chronic conditions like diabetes, high blood pressure, and obesity.
The researcher saw that 14 percent of adults who are over the age 20 or older, which makes 788 million Americans who had CKD in 2022. The biggest problem is not the disease itself, but the unawareness. Doctors, experts, and researchers from time and again have pointed out how kidney disease is often asymptomatic, this is why it is ignored until it becomes advanced. However, at that point the patients could already need dialysis or even an organ transplant. This gap in early diagnosis and treatment is what has made CKD the ninth leading reason of death, worldwide.
When you kidney functions naturally, it works as the powerhouse of filtration. A pair of healthy kidneys are able to filter and process more than 150 liters of fluid from the blood. These organs are also responsible for filtering out the waste and toxins through your urine. Not just that, but your kidneys also help in red blood cells production that keeps you healthy. When all of that does not happen, it can eventually impact every other organ in your body.
Like they say, everything is connected, and it surely is. For instance, somewhere around 20% of the blood that your heart pumps goes to your kidneys. If someone has diabetes and high blood pressure, it could damage the blood vessels and lead to protein in the urine and a slower filtration rate. It can then lead to other chronic infections, autoimmune disorders, and even genetic variants.
If you leave your kidney disease untreated, it could lead to kidney failure. This is when you would be more in need of dialysis or a transplant. Doctors have pointed out that most people do not die of chronic kidney disease, rather it impacts their quality of life, worsening their cardiovascular conditions. It can lead to complications like a heart attack, a stroke, or a heart failure.
People who have kidney diseases are at an increased risk for high blood pressure. Due to hurdles in the process of filtration, plaque build ups and hardens the arteries. This in return increases stress on the heart. In fact, the American Heart Association also defined the link between kidney and heart as 'cardiovascular-kidney metabolic syndrome'. This defines a health disorder that is a condition of the overlap of obesity, chronic kidney disease and cardiovascular diseases.
The bleed out of CKD is not just limited to your heart. The National Institute of Health, US points out that along with heart complications and high blood pressure, CKD could also lead to anemia, mineral and bone disorder, metabolic acidosis, malnutrition, and electrolyte imbalances in the blood.
The first way is to note any symptoms and get yourself diagnosed. Look for signs like loss of appetite, unexplained nausea or vomiting. Do you feel tired often? Are you having trouble concentrating? Is there any change in how often you go pee?
Other symptoms like a change in your urine color or texture, or feeling itchy or dry, muscle cramps, unexplained weight loss or skin conditions could also signal towards kidney diseases.
However, not always does CKD show symptoms, experts suggest that to be one step ahead, it is important to undergo regular health checkups, including blood culture. General guidelines usually point towards getting a blood test done every 3 to 6 months. For someone with high blood pressure, diabetes or any other disease, the current guidelines say that those people should get regular blood and urine tests to screen for kidney disease. But what really happens is that though these tests exist, they are still used far too little. Doctors point out that many patients skip them because collecting a urine sample feels inconvenient, and overall awareness about kidney disease remains low. As a result, research shows that only about 35 percent of people with diabetes, and just 4 percent of those with high blood pressure, actually end up getting the recommended urine screening.
A ray of hope is that there are now several effective tools to slow the progression of kidney disease. Along with traditional options like ACE inhibitors, newer classes of medications including certain heart failure drugs and GLP-1 drugs. These medicines have shown to help protect kidney function. Although these newer treatments are not widely used yet, their adoption is steadily increasing.
What is important to remember is to also always consult your GP to ensure all preventative measures are followed carefully.
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