How Safe Is It To Use Microwave For Reheating Food?

Updated Feb 9, 2025 | 09:00 AM IST

SummaryAccording to research, when certain plastics are subjected to heat, they produce compounds such as phthalates and bisphenol A (BPA). These substances have been associated to hormonal disturbance, metabolic problems, and perhaps reproductive concerns.
Microwaving food

Microwaves are a common appliance in every household now. You will see it in kitchens of not just houses, but offices, cafeterias, and co working space. However, there are studies that show that heating food in a microwave could be a health concern. While it does come handy, there are questions about harmful radiation and nutrient loss and heating safety that still linger.

Does Microwave Destroy The Nutrients In Food While Heating?

Some research suggests that microwaving may cause nutritional loss, particularly in vegetables. For example, studies have shown that microwaving broccoli with water diminishes its flavonoid content, which are anti-inflammatory compounds. However, experts note that cooking method and duration have a significant influence on nutrient retention.

Surprisingly, several studies indicate that microwaving preserves more nutrients than traditional cooking methods. A study comparing microwaved versus oven-cooked ready meals found that the microwaved version contained somewhat more vitamin C. Another study discovered that microwaving some vegetables, such as broccoli and green beans, may retain more beneficial compounds than boiling.

Ultimately, the nutrient loss really vary on the type of food which is being heated and how it is being cooked. Experts also recommend using minimal water and shorter cooking times to maximize the nutrient retention.

Is Heating In Plastic Safe?

Plastic containers and heating food in it, has always been a topic of debate. While containers do come with microwave-safe stamps, is it really safe to heat them with food?

According to research, when certain plastics are subjected to heat, they produce compounds such as phthalates and bisphenol A (BPA). These substances have been associated to hormonal disturbance, metabolic problems, and perhaps reproductive concerns.

A study also took in account over 400 plastic food containers that were microwave-safe and found that most of them leaked hormone-disrupting chemicals. These are phthalates, warn experts, which are commonly used in food packaging and can interfere with body's hormonal balance, and increase risk of diabetes or even high blood pressure.

Additionally, BPA exposure has been associated with fertility issues and immune system disruptions.

So, what can be done instead?

To minimize this risk, experts recommend using glass or ceramic container when microwaving foods. If you must use a plastic container, make sure the container is not damaged or old, as they are more prone to leach harmful chemicals.

What About The Radiation?

Concerns about microwave radiation have been largely debunked by decades of research. Microwaves use non-ionizing radiation, which does not have enough energy to damage DNA or cause cancer. The electromagnetic waves used in microwaves are similar to those from radios and light bulbs.

Experts emphasize that microwave ovens are designed to contain radiation, preventing exposure. As long as the microwave is in good condition and the door seals properly, there is no significant health risk from microwave radiation.

Other Concerns

Microwaving food could sometimes also lead to uneven cooking and it can create some risks to food safety. Thus, experts advertise to use microwave only to reheat the food and not to actually cook raw food. For safe reheating, food should reach at least 82°C (176°F) throughout to kill bacteria.

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101-Year-Old Chinese Grandmother Shares Her ‘Weird’ Habits For Longevity

Updated Jan 26, 2026 | 01:49 PM IST

SummaryAs researchers continue to hunt the secret to a long life, this grandmother proves it is a much bigger science than we realize. Staying up late and snacking at odd hours were a few of the things this 101-year-old woman revealed. Here is what she claims helps her live for long

Jiang Yueqin, a 101-year old Chinese grandmother is changing the way people look at longevity online. While most people think her long life is due to a strict diet and routine, Yueqin credits her long life to her mindset, reports South China Morning Post.

Yueqin, who lives in Wenzhou, Zhejiang province, has developed a unique schedule over the last two years. While most people are turning into early risers, she sticks to being a ‘night owl’. She stays up until 2AM every single night, spending her time watching her favorite television programs.

Yueqin usually falls into a deep, high-quality sleep within minutes of her lying down on her hard the pillow. Once she is up and ready for the day, her first task is to enjoy a strong, refreshing cup of green tea.

How Can Your Mindset Affect Longevity?

When asked how her mother reached 101 while ignoring traditional health rules, Yueqin says it isn't just about the tea or the sleep, it’s about her mental outlook. The longevity expert lives with an extraordinary sense of clarity and peace. She chooses not to hold onto anger and never carries a grudge, regardless of what happens in her life.

Yueqin’s philosophy is simple: she addresses the problems she can solve and does not worry over the ones she cannot.

And researchers at the University of Florida agree.

They explain that when the body is in a state of stress for weeks or months, it keeps pumping out a hormone called cortisol. While cortisol helps you handle quick emergencies, excessive amounts of it in your system for too long acts like a toxin. This chemical imbalance can lead to several serious health problems that directly impact how long you live.

Online followers have praised her family’s support, noting that a stress-free environment and a positive attitude are likely the true "superfoods" behind her long and happy life.

What Else Does Yueqin Do?

One of the most surprising things about the expert is her physical health. Remarkably, at 101 years old, she still has all of her natural teeth and has never needed a single dental procedure or dentures.

Her eating habits are just as lively as her schedule. She eats brunch in the morning and dinner around 6:00 PM, but she often gets hungry again around 9:00 PM. When those late-night cravings hit, she reaches for local crispy pastries or modern snacks like potato chips, rice cakes, and dried sweet potatoes, treats which are usually preferred by much younger people.

Yueqin lifestyle is a clear sign mindset is as important as is eating well and exercising to live a long life

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Bacterial Vaginosis Is Not Just A Women’s Issue, Experts Say Men Can Be Affected Too

Updated Jan 26, 2026 | 01:00 AM IST

SummaryBacterial vaginosis is often treated as a women-only condition, but new research shows it can be sexually transmitted. Here’s what BV is, whether men can be affected, and why partner treatment matters.
bacterial vaginosis

Credits: AI Generated

Bacterial vaginosis (BV) is among the most common vaginal conditions and develops when the natural balance of bacteria in the vagina is disrupted. If you have experienced it before, the symptoms are likely familiar: a strong fish-like smell, changes in vaginal discharge, and persistent discomfort. Because BV is usually framed as a condition affecting people with vaginas, it raises an important question many people still ask: can men get bacterial vaginosis too?

What Is Bacterial Vaginosis (BV)?

Bacterial vaginosis occurs when healthy lactobacilli bacteria in the vagina decline, allowing other bacteria, such as Gardnerella, to multiply. This imbalance typically causes thin grey or white discharge with a noticeable fishy odor, which often becomes stronger after sex.

Although BV is not classified as a sexually transmitted infection, it does raise the risk of acquiring STIs and can lead to pregnancy complications, including preterm birth. Diagnosis is made by a healthcare professional, and treatment usually involves antibiotics like metronidazole or clindamycin. Even after treatment, BV is known to return in many cases.

Bacterial Vaginosis Symptoms And Causes

As many as 84 percent of people with BV may not notice any symptoms at all. When symptoms do appear, they can include:

  • Vaginal discharge that looks off-white, grey, or slightly green
  • A fishy-smelling discharge, especially after intercourse
  • Itching or irritation in the vaginal area
  • A burning sensation while urinating
Because these symptoms overlap with other vaginal infections, seeing a healthcare provider is essential to confirm whether it is BV or something else.

Can Men Get Bacterial Vaginosis?

A major study published in The New England Journal of Medicine has challenged long-held beliefs about BV. The research showed that BV can be passed through sexual contact and that treating male partners significantly lowers the chance of the infection coming back. These findings have already influenced medical guidelines in the United States, ending years of treating BV as a condition affecting only women, despite frequent recurrence.

The study suggests that persistent BV was not due to poor treatment adherence but rather incorrect assumptions about transmission. While BV is not a traditional STI caused by a single organism, it does spread through sex and thrives when the vaginal environment is disturbed. This has highlighted the limitations of strict STI definitions and the consequences of excluding partner treatment.

For both patients and clinicians, this shift matters. It reframes BV as a shared health concern rather than a problem limited to the vagina, helping reduce stigma and improve outcomes. It also exposes how narrow thinking in women’s health delayed better research, treatment strategies, and shared responsibility.

Bacterial Vaginosis: What Causes Similar Symptoms In Men?

Men cannot develop BV itself, but they can experience symptoms that resemble it, such as itching, unusual discharge, or unpleasant odors. Several conditions may be responsible.

Thrush

Thrush is a fungal infection caused by an overgrowth of Candida albicans. In men, it can lead to itching of the penis and a thick, clumpy buildup under the foreskin. Wearing tight clothing, excessive sweating, and poor ventilation of the genital area can increase risk. Thrush can be passed between partners during unprotected sex.

STIs

Several sexually transmitted infections caused by bacteria can mimic BV-like symptoms in men. These include:

  • Gonorrhea
  • Chlamydia
  • Trichomoniasis
  • Genital herpes
  • Human immunodeficiency virus (HIV)

STIs are typically spread through unprotected sexual contact.

Urinary Tract Infection

Although UTIs are more commonly associated with women, men can develop them too. This happens when bacteria multiply in the bladder or urinary tract. Symptoms may include:

  • Inflammation
  • Pain or burning during urination
  • Blood in the urine

UTIs often occur when Escherichia coli bacteria enter the urinary tract through the urethra and move upward.

Balanitis

Balanitis refers to inflammation of the skin at the tip of the penis. It is more common in men who are uncircumcised and may make it difficult to retract the foreskin due to swelling. Possible causes include:

  • Overwashing or poor hygiene
  • Use of scented or irritating products
  • Sexually transmitted infections
  • Reactive arthritis
  • Poorly controlled diabetes

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Vitamin D Overdose Sends Man To Hospital In UK, Doctors Warn

Updated Jan 25, 2026 | 11:00 PM IST

Summary Doctors are warning about the dangers of vitamin D overdose after a man was hospitalised with hypervitaminosis D. The article explains how excess supplementation can cause serious symptoms, who is most at risk, safe dosage limits, and NHS guidance on vitamin D use.
vitamin d overdose

Credits: AI Generated

People can end up in hospital if they take too much vitamin D, doctors have warned. Health experts say excessive intake can be harmful, with cases of hypervitaminosis D rising and linked to a range of serious health problems. Women, children, and people with existing illnesses are considered more vulnerable to the condition.

Doctors Warn Vitamin D Overdose Can Lead To Hospitalisation

The warning follows the case of a middle-aged man in the UK who was admitted to hospital after first visiting his family doctor. He complained of persistent vomiting, nausea, chest pain, leg cramps, ringing in his ears, dry mouth, intense thirst, diarrhoea, and unexplained weight loss.

His symptoms had lasted for nearly three months and began after he started seeing a nutritional therapist who recommended multiple vitamin and dietary supplements.

The patient already had several underlying health conditions, including tuberculosis, an inner ear tumour that had caused hearing loss in one ear, a build-up of fluid in the brain, bacterial meningitis, and chronic sinusitis.

What Is Hypervitaminosis D?

Vitamin D toxicity, also known as hypervitaminosis D, occurs when vitamin D levels build up excessively in the body. It is uncommon and usually results from taking doses that exceed medical advice, either through high-strength prescription vitamin D or excessive use of over-the-counter supplements taken without guidance.

Daily Intake Exceeded Recommended Vitamin D Levels

Doctors found that he had been taking more than 20 over-the-counter supplements every day. Together, they contained more than 80 times the recommended daily amount of vitamin D. He was consuming around 50,000 micrograms daily, despite the advised dose being just 600 micrograms. The mix of supplements also included excessive vitamin B9 and omega-3, alongside other vitamins, minerals, nutrients, and probiotics.

Although he stopped taking the supplements once symptoms appeared, his condition did not improve. Blood tests later showed his vitamin D levels were seven times higher than what is considered healthy. He also had dangerously high calcium levels and slightly raised magnesium levels.

Doctors found that his kidneys were not functioning properly, though scans ruled out cancer.

Patient Treated In Hospital For Eight Days With Fluids And Medication

The man remained in hospital for eight days, where he was treated with intravenous fluids to flush excess substances from his body. He was also given medications typically used to strengthen bones and reduce calcium levels in the blood.

Two months after leaving hospital, his calcium levels had returned to normal, but his vitamin D levels were still above the healthy range. NHS advises sticking to recommended vitamin D doses, especially in winter

Vitamin D can be obtained naturally from sunlight, oily fish, and wild mushrooms. The NHS advises people to follow recommended doses, particularly during autumn and winter when sunlight exposure is limited. It recommends that everyone over the age of one consider taking a daily supplement of 10 micrograms, or 400 IU, from October to March.

Hypervitaminosis D Is Rising Globally

Researchers involved in the case said there is a growing global trend of hypervitaminosis D, a condition marked by unusually high vitamin D levels in the blood. Symptoms can last for several weeks.

The researchers noted that symptoms vary widely and can include drowsiness, confusion, apathy, psychosis, depression, stupor, coma, loss of appetite, chest pain, vomiting, constipation, stomach ulcers, pancreatitis, high blood pressure, irregular heart rhythms, and kidney problems. Inflammatory eye disease, joint stiffness, hearing loss, and deafness have also been reported.

While the condition remains relatively rare, experts stress that it is possible to overdose on vitamin D. They warned that supplements often seen as harmless can become toxic when taken in unsafe amounts or combined improperly. The findings were published in the journal BMJ Case Reports.

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