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Your body hosts trillions of bacteria, viruses, and fungi, collectively known as the microbiome. While some bacteria are linked to disease, many play essential roles in supporting your immune system, heart health, weight management, and overall well-being. This article delves into the significance of the gut microbiome and its impact on health.
Interestingly, bacterial cells outnumber human cells in the body, with approximately 40 trillion bacterial cells compared to 30 trillion human cells. With up to 1,000 species of bacteria present in the gut, each plays a distinct role. While most bacteria contribute positively to health, some can be harmful. Together, these microbes weigh around 1–2 kilograms, functioning almost like an additional organ essential for overall well-being.
The relationship between humans and microbes has evolved over millions of years, with the gut microbiome playing a crucial role from birth. Initial exposure to microbes occurs during birth, and some evidence suggests that exposure begins in the womb. As the microbiome diversifies, it starts influencing key bodily functions:
Digestion of breast milk: Beneficial bacteria like Bifidobacteria help break down essential sugars in breast milk, supporting infant growth.
Fiber digestion: Some bacteria process fiber into short-chain fatty acids, which contribute to gut health and reduce risks of obesity, diabetes, and heart disease.
Immune system regulation: The gut microbiome interacts with immune cells, influencing how the body responds to infections.
Brain health: Emerging research suggests a link between the gut microbiome and brain function, potentially affecting mental health and neurological processes.
An imbalance between beneficial and harmful microbes, known as gut dysbiosis, may contribute to weight gain. Studies on identical twins—one with obesity and the other without—suggest that microbiome composition plays a role in body weight independent of genetics. Additionally, animal studies indicate that gut bacteria can influence weight gain, even when calorie intake remains constant.
Probiotics, beneficial bacteria found in supplements and certain foods, can help restore gut balance and support weight loss, though their effects may be modest.
The gut microbiome plays a vital role in preventing and managing conditions like irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). Imbalances in gut bacteria may lead to bloating, cramps, and digestive issues. On the other hand, beneficial bacteria like Bifidobacteria and Lactobacilli help strengthen the intestinal lining, reducing the risk of gut-related disorders.
Research suggests that the gut microbiome influences heart health by affecting cholesterol levels and blood pressure. Certain harmful bacteria produce trimethylamine N-oxide (TMAO), a compound linked to blocked arteries and heart disease. However, probiotics, particularly those containing Lactobacilli, may help reduce cholesterol levels and promote cardiovascular health.
The gut microbiome also plays a role in regulating blood sugar levels. Research on infants genetically predisposed to type 1 diabetes indicates that gut microbiome diversity declines before disease onset. Furthermore, individual variations in gut bacteria may explain why people experience different blood sugar responses to the same foods.
The gut is physically connected to the brain through nerves, and certain bacteria help produce neurotransmitters like serotonin, which influence mood and mental health. Studies indicate that people with mental health disorders often have different gut bacteria compared to those without such conditions. Additionally, some probiotics have shown promise in alleviating symptoms of depression and anxiety.
Maintaining a balanced gut microbiome is crucial for overall health. Here are some strategies to support gut health:
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Iron deficiency is one of the most common nutritional problems among women, but in the juggle between professional and household responsibilities, a majority of women tend to ignore their health. However, the detecting the mild symptoms in the beginning can help boost treatment and improve quality of life for women, said experts, while stressing the need for timely screening, ahead of International Women's Day.
International Women's Day is observed globally on March 8 every year.
According to health experts, in a month, around 5 out of 10 women between the ages of 30 and 45 visit doctors with complaints such as persistent weakness, headaches, and tiredness. These symptoms are often linked to iron deficiency and put women at risk of developing anemia.
“Iron deficiency is a matter of concern among women, because the symptoms, such as fatigue and weakness, are neglected until the condition becomes serious,” said Dr. Upasana Garg, Regional Technical Chief, Apollo Diagnostic Mumbai.
Dr. Garg said iron deficiency can be detected through simple blood tests that will be advised by the expert and will play a pivotal role in early diagnosis and timely treatment.
These include tests for
Anemia is a major public health concern, mainly affecting young children, pregnant and postpartum women, and menstruating adolescent girls and women.
The World Health Organization (WHO) estimates that 40 percent of all children aged 6–59 months, 37 percent of pregnant women, and 30 percent of women 15–49 years of age worldwide are affected by anemia.
Anemia occurs when there isn’t enough hemoglobin in the body to carry oxygen to the organs and tissues.
In severe cases, anemia can cause poor cognitive and motor development in children. It can also cause problems for pregnant women and their babies. It is often caused by a lack of iron in the blood.
“Iron is a necessary mineral which helps the body to produce hemoglobin, a protein in red blood cells that carries oxygen to different parts of the body. When the body does not have enough iron, it is unable to produce healthy red blood cells. This condition is known as iron deficiency or iron deficiency anemia,” said Dr. Ritu Agrawal, Gynecologist, Zynova Shalby Hospital, Mumbai.
Dr. Agrawal said that women are more likely to experience iron deficiency when compared to men.
The major reason is blood loss during menstruation, and women who have heavy periods are at a higher risk.
During pregnancy, when the body needs extra iron to support the growing baby, the risk of anemia increases in the mother.
Other factors include poor diet, skipping meals, and not eating enough iron-rich foods.
The common symptoms of anemia in women include:
constant tiredness,
weakness,
pale skin,
shortness of breath,
dizziness,
headaches,
hair fall
difficulty concentrating
frequent infections due to reduced immunity
Dr. Agrawal said that 50 percent of women tend to ignore early symptoms of anemia.
“In a month, around 5 out of 10 women between the ages of 30–45 visit with complaints such as persistent weakness, headaches, and tiredness, which are often linked to iron deficiency and put them at risk of developing anemia. If iron deficiency is not treated in time, it can lead to several health complications,” she added.
Severe anemia can also lead to heart-related problems, such as irregular heartbeat or shortness of breath.
The experts noted that detecting iron deficiency on time and initiating immediate treatment is necessary for women's better health.
Management of iron deficiency includes
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American TV personality Oprah Winfrey turned heads at the Paris Fashion Week with her slim figure and sparked talks on the popular weight-loss drug Ozempic.
The now viral videos show Oprah, 72, in jeans and a jacket. Usually seen in parted hair, Oprah also resorted to a ponytail and was wearing tinted sunglasses.
While several netizens expressed concerns about her health, others also spoke about the effects of Ozempic, widely used for weight loss.
“What in the Ozempic Oprah is going on here?”, wrote a user.
“I'm afraid Oprah may OD on Ozempic. Welfare check, please!” another added.
People also commented on the seemingly bigger head and frail body.
“Her head looks way too big for her body. Is it Ozempic or Oprah?” wrote a user.
“She looked good, but she seemed frail,” the netizens said, while another stated, “But having a head that big still is crazy”.
The video also showed Gayle King, another TV host and a longtime friend of Oprah, with a lean figure. Gayle, 71, also rocked a warm-brown look, paired with a fitted top and a black leather jacket.
Oprah has openly shared the use of a GLP-1 agonist for weight loss. However, she never mentioned any brand names.
“One of the things that I realized the very first time I took a GLP-1 was that all these years I thought that thin people just had more willpower, they ate better foods, they were able to stick to it longer, they never had a potato chip, and then I realized the very first time I took the GLP-1 that, 'Oh, they're not even thinking about it. They're only eating when they're hungry, and they're stopping when they're full,” Oprah said in a podcast early in 2025.
In 2023, speaking to People, she said she uses the weight-loss medication as a tool to quiet the food noise.
“I now use it as I feel I need it, as a tool to manage not yo-yoing. It quiets the food noise,” she had told the publication.
In an Instagram post in February 2026, Oprah also showcased her strength training evolution, highlighting the benefits of daily workouts for bone health and her impressive plank progress.
She told her fans that while in 2024, she struggled to hold a plank for more than 10 seconds, now she manages to do a 1-minute plank routine.
While Ozempic was originally developed and FDA-approved as an injectable medication to help manage type 2 diabetes, it has gained immense popularity for its ability to produce significant weight loss.
The drug is popular for its active ingredient, semaglutide, which works by mimicking a hormone that regulates blood sugar and appetite.
However, there are several concerns over its side effects. The loss of lean mass, which includes muscle, has emerged as the biggest concern.
Studies have proven that it provides significant weight loss and also reduces major cardiovascular risks and boosts kidney health, among others.
However, common side effects include:
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She wakes before dawn, packs lunches, manages households, holds careers together, and still finds time to ask everyone else, "Are you okay?" The Indian woman is, in every sense, the backbone of her family. And yet, in giving so much of herself to others, she often becomes the last person she takes care of.
This International Women's Day, that needs to change.
Cancer remains one of the gravest health threats facing Indian women today.
Breast cancer has become the most frequently diagnosed cancer among Indian women — and unlike in Western countries, it is striking women in their 30s and 40s, at the very peak of their lives.
Cervical cancer, though almost entirely preventable, continues to claim thousands of lives every year — not because medicine has failed, but because awareness has.
Ovarian cancer, often called the "silent killer," is frequently caught only at advanced stages, making early vigilance all the more critical.
Thyroid cancer is emerging as a cancer that disproportionately affects women — occurring nearly three times more often in women than men. The good news is that it is also one of the most treatable cancers when detected early.
Women who notice a lump or swelling in the neck, unexplained hoarseness, or difficulty swallowing should not dismiss these signs.
A simple ultrasound and blood test can go a long way in ruling out — or catching — a problem early. The truth, however, is not bleak — it is urgent.
Most cancers, when found at an early stage, are highly treatable. Women above 40 should schedule regular clinical breast examinations and mammography.
Cervical cancer screening through a Pap smear or HPV test, starting as early as age 25–30, can detect precancerous changes before they ever become cancer. These tests are quick, safe, and available — what they need most is for women to simply show up.
Prevention, too, begins with everyday choices. Avoiding tobacco in all its forms — cigarettes, gutka, paan — is the single most powerful step. Regular physical activity, a diet rich in fruits and vegetables, maintaining a healthy weight, limiting alcohol, and getting the "HPV vaccine" (ideally between ages 9 and 14) can dramatically reduce cancer risk.
And perhaps just as importantly: listen to your body. An unusual lump, unexplained bleeding, or a symptom that won't go away is not something to push aside for later. Later can cost everything.
A healthy woman builds a healthy family — and a healthy nation. This Women's Day, let's give every woman around us the most meaningful gift possible: the reminder that her health is not selfish, it is essential.
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