We have all seen movies where right before the hero starts fighting, he cracks his knuckles and makes it look like the coolest thing in the world! But then our parents told us that you should not crack your knuckles because that weakens your grip and hand strength. But is that true? While many people do say that they experience a small loss in strength immediately after they crack their knuckles, but are their long-term effects to it? And what is the sound actually coming from?

The reason why people crack their fingers is because the evident and sharp crack noise causes a sense of relief. Many people also do it when they have done an activity that required them to work with their hands a lot like typing or sewing, giving themselves a sense of satisfaction, similar to stretching after doing hard work. That "crack" sound can make some people cringe, while others find it strangely satisfying. Cracking your knuckles is a pretty common habit, but there are a lot of misunderstandings about it. Some people do it without even thinking, others can't stand the noise, and some can't crack their knuckles at all. You might have been told as a kid that it causes arthritis or makes your fingers swell up. But those are just old wives' tales. There's a real science behind this habit, and it's more interesting than you may think.

Why Do Knuckles Make That Popping Sound?

The "crack" isn't actually bones breaking or anything bad happening to your joints. It's a normal thing called "crepitus." This just means harmless popping, snapping, or grinding sounds that come from your joints. The main reason you hear this sound is because of gas bubbles in the fluid that cushions your joints. This fluid is called synovial fluid. When you move or stretch, these tiny bubbles form and then pop, making the sound. It's totally normal and doesn't hurt you. Sometimes, especially in bigger joints like your knees, shoulders, or ankles, the sound can also happen when the stretchy tissues that connect your bones (ligaments and tendons) move slightly and then snap back into place.

After you crack your knuckles, you can't usually do it again right away. You have to wait a bit. That's because the gas bubbles in your joint fluid have already popped, and it takes a little while for them to build up again. While cracking your knuckles doesn't give you arthritis, doing it too much might cause some problems. Doctors say that cracking them too often could make your joints a little wobbly and might even make your grip weaker. Also, if the stretchy tissues in your joints keep snapping over your bones, they can get irritated and sore.

When Joint Popping Might Mean Something More

Sometimes, a pop in your joint is just like cracking your knuckles, nothing to worry about. But other times, it can be a sign of something else. As we get older, the cushiony stuff in our joints, called cartilage, can start to wear down. This cartilage helps your bones move smoothly. When it gets thin or uneven, the bones can rub together, and that can make a grinding or popping sound. This is different from the pop you get from gas bubbles. If this grinding sound happens along with pain, it could be a sign of osteoarthritis. This is a type of joint problem that's more common in older people, but younger people can get it too, especially after a joint injury. If your joints hurt, especially in the morning or after you've been sitting still for a while, feel wobbly, or are hard to move, it's a good idea to see a doctor.

A new weight-loss drug often described as the “triple G” treatment because it mimics three hormones linked to hunger and metabolism has delivered striking results in fresh data shared Thursday by its developer, Eli Lilly. In a clinical study involving more than 400 people living with obesity and knee osteoarthritis, the experimental drug retatrutide led to an average weight reduction of 71 pounds, or close to 29% of total body weight, over a period of 16 months, according to figures released by the company. Participants who received retatrutide also reported a 76% drop in knee pain by the end of the study period, based on the same data. So is

What Is Retatrutide?

Retatrutide is an experimental weight-loss drug developed by Eli Lilly and is widely seen as a next-step advancement beyond current GLP-1-based medications such as semaglutide and tirzepatide. While semaglutide acts on a single hormone pathway and tirzepatide works on two, retatrutide targets three.

It activates GLP-1 and GIP, along with an added glucagon pathway, which is why it is sometimes informally referred to as a “GLP-3” drug. Researchers believe this third pathway could explain the greater weight-loss effects seen so far, although retatrutide remains under investigation and has not yet received FDA approval.

Why Is Retatrutide Trending?

Even without regulatory approval, retatrutide has gained attention among gym enthusiasts, fitness creators, and online weight-loss communities. On platforms like TikTok, where direct searches for #reta or #retatrutide are restricted, users often refer to it using coded terms such as “ratatouille.”

At the same time, the drug has been in the news due to growing concerns about counterfeit versions. Reports from the UK recently revealed that authorities seized more than £250,000 worth of fake weight-loss injection pens labelled as tirzepatide and retatrutide from a hidden factory in Northampton. These products are especially concerning because retatrutide is still in clinical trials and has not been approved for use anywhere in the world.

How Is Retatrutide Different Than Other Weight-Loss Drugs?

Retatrutide works by mimicking three hormones that play a role in appetite and metabolism: GLP-1, GIP, and glucagon. In contrast, most weight-loss drugs currently available target only one or two of these pathways. Ozempic and Wegovy, made by Novo Nordisk, copy the effects of GLP-1, a hormone that influences the brain, pancreas, stomach, liver, and muscles, according to the National Institutes of Health.

Mounjaro and Zepbound, on the other hand, act on both GLP-1 and GIP, a hormone involved in blood sugar regulation through insulin stimulation. Retatrutide’s added glucagon effect is key, as glucagon is known to support fat burning, even when the body is at rest. Ozempic and Mounjaro are approved by the FDA for treating Type 2 diabetes, while Wegovy and Zepbound are approved for people with overweight or obesity. As with any prescription drug, it is important for individuals to consult a healthcare professional to determine whether these treatments are appropriate for them.

When Is Retatrutide Expected To Be Available To Consumers?

There is currently no confirmed timeline for when retatrutide might become available by prescription. Its launch will depend on the FDA’s detailed evaluation of clinical trial data once it is formally submitted. Based on current expectations, approval is unlikely before late 2026 and could potentially extend into 2027 or even 2028.

The use of nicotine pouches is rising sharply across the UK, especially among young adults, recent research suggests. These small pouches sit between the lip and gum and release nicotine gradually into the body. Available in many flavours, they often include sweeteners and plant-based fibres. But are they truly a better option than smoking, or could nicotine pouches still pose health risks? We take a closer look below.

What Are Nicotine Pouches?

Nicotine pouches are small, tobacco-free sachets that contain nicotine powder along with flavourings and fillers. They are placed between the lip and gum, similar to snus, allowing nicotine to be absorbed without smoke, vapour, or spitting. Marketed as a discreet way to consume nicotine, they still deliver a highly addictive substance and expose users to certain chemicals. Health experts have raised concerns, particularly for young people, despite these products often being promoted as a “safer” choice than cigarettes.

Popular brands such as Zyn, On!, and Velo now dominate a fast-growing market, according to the CDC. Like vaping, they do not contain tobacco and are generally viewed as less harmful than smoking.

A recent study led by researchers at University College London (UCL) found that over the past five years, about 522,000 additional people in the UK have started using nicotine pouches, with usage rising from 0.1% to 1% of the adult population.

This has raised an important question: are nicotine pouches actually safer than smoking, and what is driving their sudden popularity?

Nicotine Pouches: Is Using Them Safer Than Smoking?

Speaking on *Mornings with Ridge and Frost*, lead study author Dr Harry Tattan-Birch from UCL’s Institute of Epidemiology and Health Care told Sky News that the risks linked to nicotine pouches are much lower than those associated with smoking. “There’s no tobacco and no combustion,” he explained. “And we know it’s the burning of tobacco that causes most smoking-related diseases.”

That said, Dr Tattan-Birch and his colleagues stressed that these products are not harmless and should never be accessible to children. The NHS notes that while nicotine itself does not cause serious diseases in the way tobacco does, young people’s developing brains and lungs are more vulnerable to its effects, and dependency can form quickly.

UCL research fellow Eve Taylor also told Sky News that nicotine pouches are “far less harmful than smoking,” but cautioned that they are still relatively new. Because of this, their long-term effects are not yet fully understood. “We can look at what’s in them to estimate potential risks,” she said. “They’re not risk-free. Users are still exposed to some toxic substances, even if the levels are much lower.”

Nicotine Pouches: Are Pouches Helping People Quit Smoking?

According to UCL’s findings, among participants surveyed between January 2022 and March 2025, 69% of nicotine pouch users were also using other nicotine products. More than half of them, 56%, were still smoking cigarettes. Around one in six users, or 16%, reported that they had never been regular smokers, suggesting the habit was not linked to quitting cigarettes.

As quoted by Sky News, Dr Tattan-Birch said the public health impact of nicotine pouches depends largely on who is using them. “If a young person who might otherwise smoke switches to pouches, that could reduce harm,” he said. “But if someone who wouldn’t have used nicotine at all starts using them, the risk of harm goes up.”

Researchers added that more studies are needed to understand whether nicotine pouches genuinely help people stop smoking in the long run.

Are Nicotine Patches Harmful For Health?

Nicotine patches are widely regarded as safer than smoking and are a well-established aid for quitting. They provide a steady dose of nicotine to reduce cravings without exposing users to tar or cancer-causing chemicals found in cigarettes. However, they are not completely without side effects. Common issues include skin irritation, headaches, and sleep disturbances. People with serious heart conditions or those who are pregnant are advised to speak with a doctor before using them, as nicotine can still affect heart rate and blood pressure, though far less dangerously than smoking, according to the CDC.

People have been advised not to rely on a commonly used medicine when dealing with flu or cold symptoms. The UK Health Security Agency (UKHSA) has released an important warning about the use of antibiotics. Antibiotics are drugs designed to treat bacterial infections. They work by killing bacteria or stopping them from growing and multiplying. But why are health authorities urging caution against antibiotics during the current rise in flu cases?

Flu Influenza: Super Flu Cases Rising In UK And US

This year, a new strain of influenza, known as influenza A H3N2 or the subclade K variant, is spreading quickly across several countries, including the United States, according to Fox News. This week, the Centers for Disease Control and Prevention reported an 8.1% increase in positive flu tests across the country.

The UK is facing a similar situation. The NHS has warned that hospitals in England are dealing with a “worst case scenario” this December due to a surge in so-called “super flu” cases. An average of 2,660 patients per day were hospitalised with flu during the first week of December, the highest number ever recorded for this time of year and a 55% jump from the previous week.

Flu Influenza: Why Is UKHSA Warning Against Taking Antibiotics During Super Flu?

Antibiotics are medicines specifically meant to fight bacterial infections by destroying bacteria or preventing them from spreading. This helps the body’s immune system clear the infection. However, it is important to understand that antibiotics do not work on viral infections. These include illnesses such as the common cold, flu, and COVID-19.

In a post shared on social media platform X, the UKHSA stated: “Antibiotics don’t work for colds and flu – pharmacists can advise you on how to treat your symptoms.”

Flu Influenza: Guidelines On Using Antibiotics During Super Flu

The UKHSA has urged people to follow a few “simple” rules when it comes to antibiotics:

• Don’t take them for colds or flu
• Don’t save them to use later
• Take them exactly as prescribed

This advice comes as flu cases continue to rise across the UK. Data from the UKHSA showed that in the week ending December 7, flu positivity in England increased, with the weekly average reaching 21 per cent, up from 17 per cent the week before.

Hospital admissions linked to flu also rose to 10.05 per 100,000 people, compared with 8.09 per 100,000 previously.

Flu Influenza: Antibiotic-Resistant Infections

The warning follows the publication of the UKHSA’s English Surveillance Programme for Antimicrobial Utilisation and Resistance (ESPAUR) report in November. The report revealed that around 400 people each week in England are diagnosed with antibiotic-resistant infections.

These infections are harder to treat and can result in serious health problems. Experts say that the excessive use of antibiotics over time has reduced their effectiveness, leading to the rise of so-called “superbugs.”

The NHS explains that these are types of bacteria that have developed resistance to several antibiotic treatments, including:

• MRSA (methicillin-resistant Staphylococcus aureus)
• Clostridium difficile (C. diff)
• The bacteria responsible for multi-drug-resistant tuberculosis

The NHS has warned: “These infections can be serious and difficult to treat, and are becoming an increasing cause of disability and death worldwide. The greatest concern is that new strains of bacteria could develop that cannot be treated with any existing antibiotics.”

Dr Alicia Demirjian, consultant epidemiologist and clinical lead for antimicrobial resistance and prescribing at the UKHSA, said: “Antibiotic resistance is one of the biggest threats to modern medicine, but the good news is that we can all help reduce it.”

When a GP prescribes antibiotics, it is vital to follow the instructions carefully and not miss any doses.

The NHS advises: “If you forget to take a dose of your antibiotics, check the patient information leaflet that comes with your medicine to see what to do. If you’re unsure, speak to a pharmacist or your GP.

“In most cases, you can take the missed dose as soon as you remember and then continue the course as normal. But if it’s nearly time for your next dose, skip the missed one and carry on with your regular schedule.” You should never take a double dose to make up for a missed one.

Disclaimer: This article is for informational purposes only and is not intended as medical advice. Antibiotics or any other medicines should only be taken after consulting a qualified healthcare professional. Always follow the guidance of your doctor, pharmacist, or local health authority regarding diagnosis and treatment.