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Millions take glucosamine, but evidence remains unclear

Glucosamine is a naturally occurring substance in the body and a component of joint cartilage.

As a result, many people choose to take it as a dietary supplement, often together with chondroitin sulfate, in the hope of relieving pain caused by osteoarthritis, according to Health.

According to the National Center for Complementary and Integrative Health, most studies have focused on osteoarthritis of the knee. However, the findings have been mixed.

Some studies have found no significant difference compared with a placebo, while others have reported modest improvements in certain patients.

Known risks

Glucosamine is generally considered safe for most people.

The most common side effects include headaches, nausea, and constipation, according to the Mayo Clinic.

In addition, a new study published in Nature Metabolism found an association between glucosamine use and faster cognitive decline in people with mild memory impairment.

However, the researchers emphasized that the study does not demonstrate that glucosamine is the cause. More research is therefore needed, Health reports.

Use with caution

Dietary supplements are not regulated in the same way as medicines.

As a result, the contents and dosage may vary from one product to another, orthopedic surgeon Nathan K. Endres told Health.

The overall body of research also does not provide a clear answer as to how effective glucosamine is.

A 2022 meta-analysis published in Archives of Orthopaedic and Trauma Surgery found modest improvements in some people with knee osteoarthritis, while other studies found no significant benefit.

As a result, experts believe that some people may experience benefits from glucosamine, but the scientific evidence remains limited, according to Health.

More young people are being diagnosed with colorectal cancer – these symptoms should never be ignored

Many people experience stomach or bowel problems from time to time. These may include constipation, diarrhea, or changes in bowel habits.

However, if these symptoms persist or feel different from normal, they should be evaluated by a doctor, according to SciTechDaily.

Unexplained weight loss, fatigue, nausea, or a reduced appetite may also be signs of bowel disease.

More young people are being affected

Colorectal cancer is still most commonly diagnosed in older adults.

Nevertheless, figures from the American Cancer Society show that the disease is becoming more common among younger people.

Today, around one in five patients is under the age of 54, compared with only about one in ten 30 years ago.

As a result, the American College of Surgeons Congress 2025 has developed new educational materials to help patients recognize the symptoms and discuss them with their doctor.

The most important warning sign

Blood in the stool is one of the most serious warning signs and should always be investigated if it occurs repeatedly.

According to research presented at the American College of Surgeons Clinical Congress 2025, rectal bleeding was the strongest indicator of cancer among patients under the age of 50 who were evaluated because of symptoms.

The U.S. Preventive Services Task Force recommends that people at average risk begin colorectal cancer screening at age 45.

People at increased risk may need to begin screening at an earlier age.

New study: Sleep, exercise, and mood are connected – but not in the same way for everyone

It is well established that regular exercise, a healthy diet, and good sleep can help improve overall health.

According to News-Medical, previous research has also shown that healthy habits often go hand in hand.

However, less is known about how these habits relate to mood and well-being from one day to the next.

To address this, researchers investigated whether changes in one habit are associated with changes in other habits within the same individual.

70 days of daily tracking

The study, published in the journal Applied Psychology: Health and Well-Being, included 79 adults in the United States.

Over a period of 70 days, participants recorded their sleep, physical activity, diet, alcohol consumption, time spent in nature, social interactions, and mood.

The researchers used these data to examine how these habits were related both within the same day and from one day to the next.

Because the findings are based on participants’ self-reported data and a relatively small sample size, they should not be considered definitive recommendations applicable to everyone.

Major differences between individuals

The researchers identified several common patterns. For example, higher levels of physical activity were often associated with spending more time in nature and consuming more fruits and vegetables.

A more positive mood was also linked to a greater number of healthy behaviors on the same day.

However, the relationships varied considerably from one person to another. This suggests that the same lifestyle advice may not be equally effective for everyone.

According to the researchers, the findings could serve as an initial step toward more personalized lifestyle and health recommendations.

A new study has examined how sleep, exercise, diet, and mood are interconnected in everyday life.

These symptoms alongside a headache could require immediate action

Headaches are common and are often caused by stress, dehydration, or muscle tension.

According to the NHS, as cited by LADBible, rest, plenty of fluids, and over-the-counter painkillers can often help.

However, if the headache gets worse or does not go away, it should be taken seriously.

This is especially true if it develops rapidly or feels different from your usual headaches.

Watch for these warning signs

A severe headache accompanied by other symptoms may be a sign of a serious medical condition.

The NHS lists symptoms including a high fever, a stiff neck, sensitivity to light, cold hands and feet, vomiting, confusion, a rash, and seizures as warning signs that require urgent medical assessment.

According to the Cleveland Clinic, some people may also experience pain that spreads to the back and increasing difficulty moving their neck.

Why seeking help quickly matters

American neurologist Baibing Chen warned in a TikTok video, according to LADBible, that many people assume these symptoms are caused by a common viral illness and therefore wait too long before seeking medical attention.

This can be dangerous because, in rare cases, a severe headache may be a sign of meningitis.

Meningitis is an infection or inflammation of the membranes surrounding the brain and spinal cord.

According to the NHS, meningitis can develop rapidly and become life-threatening if it is not treated promptly.

The Meningitis Research Foundation therefore urges people to seek immediate medical attention if a severe headache occurs alongside several of the symptoms mentioned above.

These foods may help keep your liver healthy

Fatty liver can be caused by alcohol, but it may also develop as a result of factors such as obesity, smoking, diabetes, high blood pressure, or high cholesterol.

Diet can play an important role, and several foods may help support liver health while also making it easier to maintain a healthy weight, according to Mount Elizabeth.

Eat more green vegetables

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Green vegetables such as beans, spinach, and Brussels sprouts may be beneficial for people with fatty liver.

According to Mount Elizabeth, studies have linked broccoli to reduced fat accumulation in the liver.

Vegetables are filling, low in calories, and rich in dietary fiber, which may also help lower cholesterol levels.

Choose fatty fish

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Salmon, sardines, tuna, and trout are rich in omega-3 fatty acids. These healthy fats may help reduce fat buildup in the liver and decrease inflammation.

Fish is also an excellent source of protein and can serve as a healthy alternative to meat.

Eat walnuts in moderation

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Walnuts are a good source of omega-3 fatty acids and make a healthy snack or a nutritious addition to salads and cooked meals.

Mount Elizabeth recommends limiting intake to a small handful per day.

Use flaxseed oil

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Flaxseed oil is an unsaturated oil that contains omega-3 fatty acids. It can be used in salads, spread on bread, or for light cooking as a healthier alternative to less nutritious fats.

Add avocado to your diet

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Avocados contain healthy fats and, according to Mount Elizabeth, appear to contain compounds that may help slow liver damage.

They can be enjoyed on bread or added to sandwiches and wraps.

Choose skim or fat-free milk

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Milk is a good source of protein, which is essential for maintaining the body’s tissues.

Mount Elizabeth recommends skim or fat-free milk, which can also be enjoyed with oatmeal.

Drink coffee without added sugar

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Coffee may help lower levels of abnormal liver enzymes in people at risk of liver disease.

To avoid unnecessary calories, limit sugar and cream and instead choose low-fat milk and, if desired, a sweetener.

Eat sunflower seeds

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Sunflower seeds contain vitamin E, an antioxidant that may help protect the liver from damage.

They can be eaten as a snack or sprinkled over salads, but they should be consumed in moderation.

Use garlic

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According to Mount Elizabeth, research suggests that garlic may help reduce fat levels in the liver.

Garlic also adds flavor to meals, which may reduce the need for high-calorie or salty sauces.

Drink green tea

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Early studies cited by Mount Elizabeth suggest that green tea may help reduce fat storage in the liver and improve liver function.

Mount Elizabeth also notes that green tea has been associated with lower cholesterol levels and may support better sleep.

Aim for weight loss if you are overweight

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For people who are overweight, Mount Elizabeth recommends losing at least 10 percent of body weight through a reduced-calorie diet.

Eating more vegetables, fruit, and fiber-rich foods can be an important part of achieving this goal.

Cut back on unhealthy ingredients

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Mount Elizabeth recommends limiting the intake of added sugar, salt, trans fats, refined carbohydrates, and alcohol.

Doing so may help reduce the risk of both alcohol-related and non-alcohol-related fatty liver disease.

The wrong clothing choice could result in fines or jail in several holiday destinations

Most people remember to check their passport, visa, and baggage regulations before going on holiday.

However, according to travel expert Jacob Wedderburn-Day of Stasher, it is also important to research local dress regulations, UNILAD reports, as cited by Dagens.dk.

He recommends that travelers read official travel advisories, especially if they are visiting several countries, as dress regulations can vary from one destination to another.

Breaking the rules can be costly

Failing to understand local regulations can have serious consequences.

According to UNILAD, travelers may face fines as well as legal problems with the authorities.

World Population Review states that Oman can impose fines of up to $5,000. In Ghana, violations can, in some cases, result in up to one year in prison.

Several Caribbean countries have similar regulations.

This type of clothing can cause problems

Camouflage clothing is what travelers should pay particular attention to.

According to Jacob Wedderburn-Day, several countries classify camouflage as military attire, meaning civilians are not permitted to wear it.

The ban may apply to more than just trousers and jackets. It can also include caps, bags, swimwear, and other garments featuring camouflage patterns.

World Population Review reports that 21 countries fully or partially prohibit civilians from wearing camouflage.

The list includes Jamaica, the Bahamas, Oman, Ghana, Nigeria, and Barbados.

For that reason, the expert recommends that travelers check the regulations before packing their suitcase. According to UNILAD, doing so can help them avoid fines and other problems during their holiday.

Study links early retirement to faster cognitive decline

According to Fortune, an aging population is already creating economic challenges in the United States and other countries.

At the same time, more people are being diagnosed with conditions such as dementia and Alzheimer’s disease, placing a significant financial burden on society.

According to the University of Southern California, these diseases cost approximately $781 billion in 2025.

Previous studies have also shown that a smaller share of older adults in the workforce can contribute to slower economic growth.

More people are retiring early

Many Americans choose to retire before the age of 65.

According to a 2025 analysis published in The Scandinavian Journal of Work, Environment & Health, a large proportion of the long-term unemployed are over the age of 55. At the same time, the average retirement age for men has declined over recent decades.

Fortune also reports that early retirement may result in lower retirement benefits, as many people choose to begin receiving Social Security benefits earlier than they are eligible to do so.

Cognitive abilities

A working paper from the National Bureau of Economic Research examined data from approximately 40,000 Americans between the ages of 51 and 75.

The researchers used data from the University of Michigan’s Health and Retirement Study and compared it with changes in labor market participation.

The study found that individuals who left the workforce faced a greater risk of experiencing a more rapid decline in their cognitive abilities.

By contrast, those who remained employed maintained their cognitive abilities better over time.

New findings may help prevent strokes in younger people

A blood clot in the brain does not affect only older adults. Damage to the wall of the carotid artery can also cause a stroke in younger adults.

The condition often develops without a clear cause, although minor neck injuries or inherited disorders may play a role in some cases, according to UVA Health.

For researchers, understanding why these injuries occur is important because they can have long-lasting consequences for people who are otherwise healthy and of working age.

Researchers examined the patients

A study published in the journal Neurology Genetics examined 37 patients with carotid artery injuries and compared them with healthy individuals.

The researchers wanted to determine whether the patients shared a specific genetic pattern that could explain the condition.

The study found that shortly after the injury, the patients showed altered activity in 11 genes. The pattern changed again at a later stage.

Several of these genes are linked to hemoglobin, which carries oxygen throughout the body and plays an important role in the blood’s ability to clot.

May help in the future

The researchers emphasize that the findings are still preliminary and need to be confirmed in larger studies.

As a result, it is still too early to say how this new knowledge could be applied in treatment. Nevertheless, the discovery could prove significant.

According to UVA Health, around one in five strokes in people under the age of 55 is caused by damage to the carotid artery.

In the long term, the new research may make it easier to identify people at increased risk and potentially help prevent some of these strokes.

Stress overload: What happens inside your body

Stress is a natural response that helps us deal with pressure and challenges. But when the body stays in a constant state of alert for too long, it can begin to affect both physical and mental health, reports The Guardian.

Stress puts the body into action

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When we feel stressed, the body reacts immediately by increasing heart rate, blood pressure and breathing to prepare us for action.

An ancient survival mechanism

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The stress response developed to help humans deal with physical danger, causing the body to prioritise immediate survival.

Hormones take control

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Shortly after the initial reaction, stress hormones are released to keep energy levels high and the body ready to respond.

Modern stress has no physical release

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Today, stress is often triggered by worries and overthinking rather than real physical threats, which can keep the body stuck in alert mode.

Important body functions are pushed aside

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While stress is active, processes such as digestion, recovery and immune function receive less attention from the body.

Long-term pressure is the real danger

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Occasional stress is normal, but problems can develop when the body does not get enough time to recover between stressful periods.

The immune system becomes weaker

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Chronic stress can make it harder for the body to fight infections and recover from illness or injury.

Health risks increase over time

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Long-lasting stress has been linked to several conditions, including depression, obesity and diseases that affect the brain.

Body and mind can fuel each other

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Physical symptoms caused by stress can create anxiety, which then increases stress levels even further.

The brain becomes more alert to danger

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Under stress, people often become more focused on bodily sensations and may interpret normal reactions as signs of something serious.

Decision-making can suffer

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Stress affects judgement and can lead to reactions or behaviours that make situations more difficult.

Managing stress early is important

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Experts say long-term stress often requires lifestyle changes, support from others and healthier coping strategies.

New research: These types of exercise can lower your blood pressure

Researchers analyzed 31 studies involving more than 1,300 participants. The findings were published in the British Journal of Sports Medicine and reported by Medical News Today.

The study examined the effects of activities including running, cycling, strength training, yoga, and team sports.

Blood pressure was measured over a 24-hour period, both during the day and at night.

According to the researchers, this provides a more accurate picture than a single reading taken at a doctor’s office.

Busy people

One of the exercise methods that showed promising results was HIIT, or high-intensity interval training. HIIT involves short bursts of intense exercise followed by rest periods.

According to lead researcher Rodrigo Ferrari, HIIT may be especially beneficial for people who struggle to find time for exercise in their daily routines.

However, the researchers noted that larger studies are still needed in this area.

The study also found that combined training — involving both cardio and strength exercises — may have a positive effect on blood pressure.

The best solution

Other forms of exercise, such as Pilates and recreational sports, also showed signs of improvement.

However, the researchers believe there is not yet enough evidence to recommend them as a treatment.

The researchers concluded that traditional cardio exercise remains the most reliable method for lowering blood pressure.

At the same time, HIIT and combined training may be good alternatives for some people.

Sources: Medical News Today and British Journal of Sports Medicine.