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We've all been there, you use the toilet, try to stand up, and suddenly your legs go numb. That odd pins-and-needles feeling can be surprising and uncomfortable. Though it might feel like a small inconvenience, it does have a scientific explanation. The numbness, also called transient paresthesia, happens when pressure blocks blood flow or presses on nerves in your lower extremities. It is normally harmless, but frequent occurrences can be signs of underlying health issues or poor toilet habits that must be addressed.
That weird numbness you experience after going to the bathroom is typically just a temporary annoyance, most often due to bad posture, straining, or sitting for an extended period. But if the numbness continues or gets worse, it is important to get medical guidance to make sure there are no underlying health issues. We discovered the top three reasons that could be responsible for this tingling and how can you avoid it? Let's dissect.
Struggling to push during a bowel movement can put excessive pressure on your abdomen and spine. This increased pressure can shift spinal discs, pressing against nerves that extend into your legs and feet. The result? A temporary loss of sensation, tingling, or weakness in your lower limbs.
Straining usually results from constipation, which in turn can be caused by a low-fiber diet, dehydration, or inactivity. If you notice that you're straining frequently, perhaps it's time to change your eating and drinking habits to help move your bowels more easily.
The way you sit on the toilet can also be a cause of that numbness in your legs. Most people are prone to hunching over when they are using their phones, reading, or just focusing too intensely. But this position can compress nerves and blood vessels in your pelvis, causing tingling or numbness.
When you sit slumped forward, you cut off blood supply to the lower half of your body, compressing nerves that travel from your pelvis to your toes. That's why the numbness will often radiate past your thighs and into your toes.
The more time you spend sitting on the toilet, the higher your chance of getting numb legs. Protracted sitting continually puts pressure on the nerves within your lower limbs, slowing blood flow and leaving you with the familiar pins-and-needles feeling.
If you habitually stay on the toilet for a long time, either from digestive problems or distractions such as browsing your phone, you may find that there is more numbness over the course of time. If constipation is leaving you on the toilet longer than normal, diet changes can calm your system.
Although periodic tingling is not a health issue, recurring numbness is a problem that needs to be addressed. Below are some professional-recommended ways of preventing it:
Being seated with your knees higher than your hips can make all the difference. Sitting this way enables your colon to unwind, facilitating smooth bowel movements while minimizing pressure on the lower parts of your body.
Don't slouch, as this squishes nerves and blood vessels, making numbness more likely. If necessary, lean your back against the toilet tank or wall to keep your posture good.
Specialists recommend five to ten minutes of toilet time per visit. If you are straining, stand up, walk around, and try later. Forcing the bowel movement can cause more damage than benefit, putting greater pressure on your spine and worsening numbness.
If constipation is a chronic problem, being hydrated and consuming fiber foods such as fruits, vegetables, and whole grains can get your digestive system back in working order.
Raising your feet using a toilet stool may position your body for a more natural and strain-free bowel movement. A squatting position keeps the rectal canal open, minimizing the need to push and reducing the risk of leg numbness.
Hard toilet seats can restrict circulation in your lower body, increasing the risk of numbness. A cushioned or padded toilet seat can provide better support, improving blood flow to the legs and feet while reducing pressure on the pelvis.
While it's normal to have some numbness in your legs from time to time when sitting on the toilet, ongoing tingling or numbness in your lower extremities may be a symptom of an underlying medical condition. If you find yourself experiencing:
It's best to see a healthcare expert to exclude conditions such as nerve compression, circulatory disorder, or spinal condition.
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Britons who regularly take a commonly used supplement are being urged to cut back if they notice four particular symptoms, as excessive intake can be dangerous and, in some cases, life-threatening. Vitamins and minerals are essential for keeping the body functioning properly. While most nutrients should ideally come from a healthy, balanced diet, many people choose to top up their intake with supplements.
Iron is one such supplement. This mineral plays a key role in making haemoglobin, the substance in red blood cells that carries oxygen around the body. When iron levels are too low, it can lead to iron deficiency anaemia. This condition may cause symptoms such as constant tiredness, low energy, shortness of breath, and heart palpitations. To avoid this, some people turn to iron supplements.
The NHS has issued guidance on its website, warning that taking “too much” iron can cause side effects. These include:
If these symptoms appear, it may be a sign that your iron intake needs to be reduced. In children, taking too much iron can be particularly dangerous and may even be fatal.
The NHS states: “Very high doses of iron can be fatal, particularly if taken by children, so always keep iron supplements out of the reach of children.” For adults, a high dose of iron is classed as more than 20mg.
The Department of Health and Social Care (DHSC) says that “most people” should be able to meet their iron needs through a varied and balanced diet. But for those who do take supplements, the NHS advises: “Do not take too much as this could be harmful.”
It adds that taking 17mg or less of iron supplements each day is “unlikely” to cause harm. The guidance continues: “But continue taking a higher dose if advised to by a GP.”
Good sources of iron include:
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People in the UK who take a commonly prescribed medication are being reminded to follow a strict cut-off time. Ignoring this guidance could lead to disrupted sleep.
Bumetanide is a diuretic, a type of medicine that helps the kidneys remove excess salt and water by increasing urine production. In the UK, it is prescribed for heart failure, a condition that affects close to one million people. Bumetanide is only available with a prescription and comes in tablet form as well as a liquid that is taken by mouth.
The NHS website lists several key points patients should be aware of when using bumetanide. One of the most important relates to timing. According to NHS advice, bumetanide should not be taken after 4pm, as doing so may cause frequent urination during the night.
The NHS states: “Do not take bumetanide after 4pm or you may have to wake up in the night to go to the toilet.” Alongside this warning, the guidance also includes recommendations on when to take the medicine and what foods to avoid.
“You'll usually take bumetanide once a day, in the morning or afternoon – or twice a day, in the morning and afternoon,” the NHS explains. “Most people need to pee about 30 minutes after taking bumetanide, and again within a few hours.” The NHS also advises avoiding foods high in salt, such as processed foods or ready meals, as well as salt substitutes like Lo Salt, as these can interfere with how the medicine works. However, it adds: “You can take bumetanide with or without food.”
Some people are advised to take extra care when using bumetanide. The NHS says it is important to inform your doctor if you have:
If you are due to have a glucose test, you should also let your doctor know that you are taking bumetanide.
There are several common side effects associated with bumetanide that occur in more than one in 100 people. The NHS says there are ways to manage these symptoms:
Patients are advised to speak to a doctor or pharmacist if the suggested coping measures do not help, or if side effects continue or worsen after a few days.
Serious side effects are uncommon, according to the NHS. However, you should contact your doctor or call 111 immediately if you experience:
The NHS also notes: “In rare cases, it's possible to have a serious allergic reaction (anaphylaxis) to bumetanide.” In 2023, the UK faced a national shortage of bumetanide, which was expected to ease in 2025.
Because of this shortage, many patients were switched to furosemide, another diuretic that is also subject to the same 4pm timing advice.
Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider regarding any questions about medications, health conditions, or before making changes to your treatment plan.
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Scientists have found that a single dose of the shingles vaccine may do more than protect against the painful viral infection. It may also help slow biological ageing in older adults. Researchers from the University of Southern California say the vaccine, commonly given to seniors, could have benefits beyond shingles prevention. The findings come from a study involving over 3,800 people, which showed that vaccinated individuals had fewer signs of biological ageing and lower inflammation levels than those who had not received the shot.
Shingles is a viral condition known for causing a painful, blistering rash. It can appear on different parts of the body but usually shows up as a band of blisters running along one side of the torso. The infection is caused by the varicella-zoster virus, the same virus responsible for chickenpox. Even after recovery from chickenpox, the virus remains dormant in the body and can reactivate years later as shingles, according to the Cleveland Clinic.
While shingles is not usually life-threatening, it can be extremely uncomfortable. Vaccination significantly reduces the risk of developing shingles. Starting treatment early can shorten the duration of the illness and lower the risk of complications. One of the most common complications is postherpetic neuralgia, a condition where nerve pain continues long after the rash has healed.
A recent study by the University of Southern California suggests that the shingles vaccine recommended for older adults may help slow down ageing at a biological level, in addition to preventing infection. “While more research is needed to confirm and expand on these results … our findings add to growing evidence that vaccines may support healthy ageing, not just prevent short-term illness,” said Eileen Crimmins, a co-author of the study, in a statement. To explore this further, Crimmins and her team focused on people who had received the shingles vaccine.
Although chickenpox is now uncommon in children, with cases dropping by over 97 percent since the vaccine became part of routine childhood immunisation in 1995, more than 95 percent of adults in the US were infected before that change, according to the CDC. At present, around one million Americans develop shingles every year.
Health authorities recommend that adults aged 50 and above receive two doses of the shingles vaccine. This not only lowers the risk of infection but also reduces the chances of postherpetic neuralgia, a lingering nerve pain that can persist for months or even years after the rash disappears.
The researchers analysed data from more than 3,800 adults aged 70 and older, using information from the nationally representative US Health and Retirement Study. Blood samples were examined to assess seven different indicators of biological ageing.
Unlike chronological age, which simply counts years lived, biological ageing reflects how well the body’s organs and systems are functioning over time.
Results showed that vaccinated participants had noticeably lower levels of inflammation, a key factor linked to age-related conditions such as heart disease, frailty, and cognitive decline.
“By reducing this ongoing inflammation, possibly by stopping reactivation of the shingles virus, the vaccine may help support healthier ageing,” explained Jung Ki Kim, the study’s lead author.
“Although the exact biological processes are still unclear, the vaccine’s ability to lower inflammation makes it a promising tool in broader efforts to slow age-related decline and improve resilience,” she added.
The study also found that vaccinated individuals experienced slower changes in how genes are switched on and off, and in how genetic instructions are translated into proteins. These processes are known as epigenetic and transcriptomic ageing and are considered important markers of biological ageing.
When all seven ageing measures were combined into a single biological ageing score, those who had received the vaccine showed slower ageing overall compared with people who had not been vaccinated.
An image collage containing three visuals shows a gloved hand drawing blood into a tube, a longevity test kit with a swab and vial placed on an orange surface, and a screenshot of longevity test results displaying a bar chart of 117 biomarkers and a biological age of 29.3 years, which is 13.5 years younger than the actual age.
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The findings build on earlier research that has linked adult vaccinations, including shingles and flu shots, to a lower risk of dementia and other neurodegenerative conditions such as Parkinson’s disease.
“This research strengthens the idea that vaccines may help promote healthy ageing by influencing biological systems beyond infection control,” said Kim, who is also a research associate professor of gerontology at USC.
Importantly, the benefits appeared to last. Even participants who had received the shingles vaccine four or more years before their blood samples were taken still showed slower epigenetic, transcriptomic, and overall biological ageing compared to those who had not been vaccinated.
“These results suggest that shingles vaccination affects key processes associated with ageing,” said Crimmins, who is a USC University Professor and AARP Professor of Gerontology.
If future research confirms these findings, it could offer Americans another reason to get vaccinated and help improve vaccination rates, which remain low. Despite a rise during the pandemic period, only 30.1 percent of eligible Americans had received the shingles vaccine as of 2022.
The study highlights the potential for common vaccines to do more than prevent disease. They could play a significant role in promoting resilience, lowering inflammation, and supporting healthier ageing, especially in older adults.
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