Imagine this. A young teenager, 17, years old, who is fully developed. Now imagine this, the same teenager has a fully developed extra set of limbs and a pelvis. That extra set of pair is attached with chest artery. But, how can this happen?

While it is extremely rare, and has a chance of less than one case occurring per 100,000 births. Such things do happen. This is called parasitic twin.

What Is A Parasitic Twin?

It is an extremely rare type of cojoined twin where a baby is born with an underdeveloped twin attached to its body. This condition is also known as vestigial twins. The condition is very closely related to conjoined twins, where babies are connected at birth and share organs. However, the main difference is that in conjoined twins, there are two developed babies, whereas in parasitic twins, only one is fully developed, other one is underdeveloped and non functional.

In such a case, the twin who is developed is medically known as the autositic or the dominant twin. The dominant twin is healthy in most aspect but may have extra tissue, organs, or limbs from the parasitic twin.

The parasitic twin may be attached with the dominant twin through several places. The common joints are at the head, torso, chest, pelvis, buttocks, or back. In these cases, the parasitic twin is not alive and they die either in the womb or during the childbirth.

Doctors Remove Parasitic Twin

Now, let's go back to the case we referred to, where a young teenager had an extra pair of limbs attached to chest. The teenager who has not been named is from Uttar Pradesh's Unnao neighbourhood, and was treated in AIIMS, Delhi. The team of doctors successfully removed the extra set of limbs from his body.

Dr Asuri Krishna, who led the team of specialist who surgically removed the extra limbs told the BBC that only 40 to 50 cases of parasitic twins have been documented in world medical literature, and in those cases, the surgery had been attempted on children. The doctor said that without much medical literature to guide them, the team of doctors depended on "intuition, skill and knowledge".

The doctor shared that the child had two fully formed legs, buttocks and external genitalia, which weighed around 15kg "protruding from his abdomen".

How Was The Surgery Performed?

The doctor shared that first they identified how interconnected the parasitic and host twins were. The doctors took scans and found that parasitic twin was attached to the teen's breastbone. The blood was being supplied from a vessel in his chest. However, "there wasn't much connection with other main organs like the liver or kidneys," said Dr Krishna. The team also found a large cyst in the teen's abdomen.

Then the surgery was performed in two stages. In the first stage, the parasitic twin was removed. Then the cystic mass was extracted from the surrounded area. The entire surgery was completed in two and a half hours and the team of doctors included radiologists, anaesthetists, and plastic surgeons.

The biggest challenge was when the teen's blood pressure dropped as 30 to 40% of his blood flowed to the parasitic twin, however, the doctors were prepared for it and they stabilized him.

Actor Claire Foy has revealed that a long, uncomfortable health struggle picked up while travelling ended up reshaping her relationship with caffeine. The Crown star, 41, said she gave up tea and coffee after discovering she had stomach parasites, an experience she described as “gross” and “absolutely rank.”

Foy shared the story during her appearance on The Table Manners Podcast with hosts Jessie and Lennie Ware on February 4, where the conversation moved from food to a period of unexplained weight loss and constant hunger.

“I kept losing weight, and I didn’t know what was going on,” she told the hosts. Despite eating regularly, she said she never felt full. “I was so hungry,” Foy recalled, adding that the situation left her confused and worried.

Diagnosis After Years of Symptoms

The actor explained that the cause was eventually traced back to stomach parasites she had picked up while travelling in Morocco. The diagnosis came after medical tests, including stool samples, which she candidly described as unpleasant but necessary.

According to Foy, doctors told her she had been carrying the parasites for around five years, a length of time she herself described as “quite a long time.” While she did not name the specific parasites, she shared one detail that stuck with her. “They travel as a pair, I got told by the doctor,” she said, reacting with visible disgust even years later.

Living with the condition took a toll on her body and routine. The ongoing symptoms pushed her to rethink how she approached treatment and daily habits, including what she consumed.

Read: 10 Signs You May Have A Parasite

Clair Foy Had Parasites For 5 Years: Why Caffeine Had to Go

It was during treatment that Foy made the decision to give up caffeine entirely. She explained that she wanted to avoid very strong antibiotics if possible and instead followed a strict diet alongside other treatments. “I basically had to go on this diet,” she said. “I didn’t want to take really hardcore antibiotics.”

As part of that process, caffeine was cut out. “I took all this gross stuff and part of that was giving up caffeine,” Foy told the hosts. At the time, it was a major shift. She admitted she had been a heavy caffeine consumer, drinking around 15 cups of tea a day along with two coffees she had carefully planned into her schedule.

A Habit That Never Came Back

Giving up caffeine was not easy, but once she did, Foy decided to stick with it. “Once you’ve given it up, it’s such a mission to give it up, that I was like, well, maybe I’ll just give it a go,” she said.

Now fully caffeine-free, she even brought her own tea bags to the podcast recording. The show is known for hosts and guests sharing food and drinks in the Ware family kitchen, making her preparation a small but telling detail of how seriously she takes the change.

Medical experts note that parasitic infections usually require medication to clear completely, often involving antiparasitic drugs and sometimes antibiotics or antifungals. In many cases, a combination of treatments is needed.

"I went into chemo-induced menopause at 37," said Lisa Ray, a Canadian actress during an interview with BBC. She also shared the clip of the interview on her Instagram account talking about the importance of awareness about the side effects of cancer and its treatment on women. Sharing the clip on her Instagram story, she wrote "This is me in menopause. Menopause does not have one face...I went into premature chemo-induced menopause at 37."

She revealed that she had blood cancer, called Multiple Myeloma. "At that time, it was the least of my worries. I had a blood cancer called Multiple Myeloma to contend with… But after recovering, I could focus on what being in menopause suddenly at 37 would mean. And I had no one to talk to," said Lisa, now 53.

What Is Chemo-induced Menopause?

Chemotherapy do not just target cancer cells, but it can also harm healthy cells, which are fast diving. Ovaries fall into that category and thus they stop producing hormones like estrogen and progesterone, which pushes the body into sudden menopause.

This condition is called iatrogenic menopause or chemotherapy-induced ovarian failure. While it could be temporary for some people, for others, it could be permanent. Experts explain that women under 30 could see their periods return after the treatment.

Chemotherapy works by attacking cells that grow and divide rapidly. While this helps destroy cancer cells, it also affects healthy cells, such as those responsible for hair growth, which is why hair loss is a common side effect.

This process can also impact reproductive organs, including the ovaries, and disrupt hormone production. As a result, levels of estrogen and progesterone—the key hormones involved in menopause—may become imbalanced due to chemotherapy’s effects on the endocrine system.

Damage to cells and these hormonal shifts can trigger menopausal symptoms and, in some cases, cause periods to stop altogether.

For people over 40, hormone levels may already be naturally declining. In such cases, chemotherapy can accelerate a menopausal transition that has already begun.

Chemo-induced Menopause Symptoms

The symptoms are same as one experiences in natural menopause, which include:

• Hot flashes
• Night sweats
• Mood swings
• Fatigue
• Vaginal dryness
• Loss of libido

However, Lisa also points out the emotional impact, which could be intense especially for someone who is young and was not expecting to face menopause for decades. “Both menopause and disease-induced menopause have been treated with shame and silence for too long,” Lisa wrote on her Instagram post.

Chemo-induced Menopause: What Can Help?

Hormone Replacement Therapy (HRT): When considered safe and not restricted by hormone-sensitive cancers, HRT can help manage symptoms while supporting bone strength and heart health.

Non-hormonal treatments: Certain medications, including SSRIs, SNRIs, and gabapentin, may reduce hot flashes, while vaginal moisturizers and lubricants can relieve dryness.

Lifestyle changes: Staying physically active, following a calcium and vitamin D-rich diet, maintaining a healthy weight, and managing stress can significantly support overall wellbeing.

Fertility support: Options such as egg or embryo freezing before treatment, along with consultations with a fertility specialist afterward, may help preserve future parenthood possibilities.

Long winters and lack of sunlight has renewed attention on vitamin D deficiency, a condition closely linked to bone health and overall well-being. Health data show that the problem is far more widespread than many realize, with potential consequences that range from brittle bones to mood changes.

Vitamin D and Its Role in the Body

Vitamin D plays a crucial role in helping the body absorb calcium, an essential mineral for strong bones and teeth. Without enough vitamin D, calcium absorption drops, weakening bone structure over time. This increases the risk of fractures, particularly among older adults.

Beyond bone metabolism, vitamin D also supports muscle function and contributes to a healthy immune response. Researchers have also explored its influence on mental well-being, as vitamin D receptors are present in several areas of the brain.

Deficiency Affects a Large Section of Adults

According to figures from the Robert Koch Institute, around 30 percent of adults in Germany have insufficient vitamin D levels. This is striking, given that the vitamin is produced by the body when skin is exposed to sunlight.

Experts point to modern lifestyles as a key reason. Many people spend most of their day indoors, often working in offices with little exposure to natural light. Seasonal factors also play a role, as sunlight is weaker and less frequent during autumn and winter months. In such conditions, relying on sunlight alone is often not enough to maintain healthy vitamin D levels.

Can Diet Help Fill the Gap?

Food can support vitamin D intake, although it usually provides smaller amounts compared to sunlight. Fatty fish are among the best dietary sources. Salmon, herring, eel, tuna, and pike perch contain relatively high levels of the vitamin and are often recommended for people at risk of deficiency.

Other animal-based options include eggs, liver, beef, and butter. For those who avoid animal products, plant-based sources can contribute modest amounts. Mushrooms, spinach, kale, broccoli, and Brussels sprouts are commonly mentioned. Some fruits such as avocados, kiwis, oranges, bananas, and figs are also included in vitamin D-friendly diets, though their contribution is limited.

Read: Vitamin D Supplements Under Scrutiny As It Fails Safety Test

Because many of these foods are eaten infrequently, especially fish, diet alone often fails to correct a deficiency.

Symptoms Linked to Low Vitamin D Levels

Vitamin D deficiency can show up in different ways. Many people report persistent fatigue, low mood, or depressive symptoms. While studies support a connection, researchers note that the exact biological pathways are still being studied.

Physical signs are often related to bone health. Weakened bones can increase the risk of fractures and cause general bone pain. Digestive issues and reduced tolerance to certain foods have also been reported in some cases. A deficiency is usually confirmed through a blood test ordered by a doctor.

When Too Much Becomes Harmful

While deficiency is common, excessive vitamin D intake can also pose risks. Health experts stress that overdoses do not occur through sunlight or normal diets, but through high-dose supplements taken over time.

Too much vitamin D can raise calcium levels in the blood, a condition known as hypercalcemia. This may lead to kidney damage, heart rhythm problems, and calcification of blood vessels. Individual risk varies depending on factors such as body weight, metabolism, and alcohol consumption, making medical guidance essential before supplement use.