Cryotherapy (Credit: Canva)
Cryotherapy is a modern-day treatment wherein the body is subjected to extremely cold temperatures for several minutes. You can just get one part of your body exposed to (localised cryotherapy) and opt for whole-body cryotherapy. The first can be done in several ways like through ice packs, ice massages, coolant sprays, ice baths and even through probes administrated into tissue. A lesser-known fact is that the use of low temperature in healing dates back to 2500 BC. However, it only came into modern practice after being used by Japanese doctor Yamaguchi in 1978 to treat people with rheumatoid arthritis.
The theory for whole-body cryotherapy (WBC) is that by immersing the body in extremely cold air for several minutes, you could receive a number of health benefits. Throughout the process, the individual stands in an enclosed chamber or a small enclosure that surrounds their body but has an opening for their head at the top. The temperature in the enclosure drops to between negative 200–300°F. The person stays in the ultra-low temperature air for between two and four minutes.
You can get benefits from just one session of cryotherapy but it is most effective when used regularly. There are many athletes who do this regularly, some athletes use cryotherapy two times every day and others will go daily for 10 days and then once a month afterwards.
1. Relieves Migraine Symptoms: Cooling the neck's carotid arteries helps reduce pain by cooling blood in intracranial vessels.
2. Eases Nerve Pain: Cryotherapy numbs irritated nerves, aiding in the treatment of pinched nerves, chronic pain, and acute injuries.
3. Improves Mood: By triggering hormonal releases like endorphins, it may help alleviate anxiety and depression.
4. Reduces Arthritic Pain: Whole-body cryotherapy can minimize arthritis pain and enhance rehabilitation.
5. Aids Cancer Treatment: Targeted cryotherapy ("cryosurgery") freezes and kills cancer cells in low-risk tumours, like prostate cancer.
6. Supports Cognitive Health: Its anti-inflammatory effects may prevent Alzheimer’s and dementia, though research is ongoing.
7. Treats Skin Conditions: Conditions like atopic dermatitis and acne may benefit from reduced inflammation and improved antioxidant levels.
Cryotherapy has a beneficial impact on your mental health too. Experts say that cryotherapy has the potential to effectively treat stress disorders like general anxiety, depression Post-traumatic Stress Disorder (PTSD), and Obsessive Compulsive Disorder (OCD.)
A 2012 study also suggested that cryotherapy can mitigate inflammation and oxidative stress, which is linked to dementia, mild cognitive impairment other age-related cognitive decline. Another study conducted in 2008 found that cryotherapy reduced symptoms by at least 50% in one-third of individuals with depression or anxiety.
Credits: iStock
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.
Credits: iStock
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.
Credits: iStock
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.
© 2024 Bennett, Coleman & Company Limited