How Does Your Gut Microbiome Impact Your Overall Health?

Updated Feb 26, 2025 | 07:32 AM IST

SummaryMicroorganisms, or microbes, reside in various parts of your body, but the majority are concentrated in the intestines, particularly in the cecum, a part of the large intestine.
How Does Your Gut Microbiome Impact Your Overall Health?

Credit: Canva

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.

What Is Gut Microbiome?

Microorganisms, or microbes, reside in various parts of your body, but the majority are concentrated in the intestines, particularly in the cecum, a part of the large intestine. This collection of microbes is referred to as the gut microbiome.

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.

How Does Gut Microbiome Influence Your Health?

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.

Gut Microbiome And Weight Management

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.

Gut Health And Disease Prevention

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.

Impact On Heart Health

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.

Blood Sugar Regulation And Diabetes Risk

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.

Connection Between Gut And Brain

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.

Tips For Healthier Gut Microbiome

Maintaining a balanced gut microbiome is crucial for overall health. Here are some strategies to support gut health:

  • Eat a diverse range of foods: A varied diet rich in fiber, legumes, and fruits promotes microbial diversity.
  • Consume fermented foods: Yogurt, kefir, and sauerkraut contain probiotics that enhance gut health.
  • Limit artificial sweeteners: Some artificial sweeteners can encourage the growth of harmful bacteria.
  • Include prebiotic foods: Bananas, oats, and asparagus contain fibers that nourish beneficial bacteria.
  • Breastfeed infants when possible: Breastfeeding promotes a healthier gut microbiome in babies.
  • Choose whole grains: Whole grains contain fiber and beneficial compounds that support digestive health.
  • Opt for a plant-based diet: Vegetarian diets may reduce inflammation and support a healthier gut microbiome.
  • Consume polyphenol-rich foods: Green tea, dark chocolate, and olive oil contain compounds that foster beneficial bacteria.
  • Take probiotics if needed: Probiotic supplements can help restore gut balance after disruptions, such as antibiotic use.
  • Use antibiotics cautiously: While antibiotics can be life-saving, overuse can harm beneficial gut bacteria.

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Is IVF A Painful Process? Fertility Specialists Debunk The Myths On IVF Injections

Updated May 20, 2026 | 04:01 PM IST

SummaryFertility specialists carefully tailor the medication dosage according to a woman’s age, hormone levels, ovarian reserve, and medical history, making the process safer and more comfortable.
Painful IVF

A common myth is that painful IVF injections are administered multiple times a day. (Photo credit: AI generated)

Many couples who consult a fertility specialist are advised to undergo Assisted Reproductive Techniques, such as in vitro fertilisation (IVF). However, there are many myths linked to IVF regarding pain and injections. According to the experts, the procedure is more manageable and less painful than commonly believed. This article helps debunk myths surrounding IVF injections.

Dr. Sneha Sathe, Clinical Director & Fertility Specialist, Nova IVF Fertility, Chembur, Mumbai and Dr. Anuranjita Pallavi, Consultant- Fertility & IVF Specialist, Motherhood Fertility & IVF , Kharghar, Navi Mumbai collectively listed some of the most common myths associated with the stigma surrounding IVF – whether it is painful, complicated, or even worth the financial investment.

Currently, many are opting for IVF, a process where eggs are collected from a woman’s ovaries and fertilised with sperm in a laboratory. The embryo is then transferred into the uterus for conception. Couples may consider IVF for several reasons, such as blocked fallopian tubes, low sperm count, hormonal issues, age-related fertility decline, or unexplained infertility. For many, IVF becomes a go-to option, offering hope and a chance to start a family. However, despite its growing success, IVF is still surrounded by fear, especially when it comes to injections and pain. Social media, hearsay, and lack of awareness often make the process seem more difficult and can prevent couples from exploring it.

The IVF journey is different for each woman. IVF does involve medical procedures, but it is not as painful or overwhelming as people believe. One of the biggest concerns around IVF is the use of injections. These injections are given to stimulate the ovaries to produce multiple eggs. While the idea of daily injections can be intimidating, most are administered using very fine needles and are relatively painless. Patients may feel slight discomfort, similar to a small prick, but it is usually manageable and short-lived.

Common IVF Myths Debunked

  1. Myth: IVF injections cause extreme pain—IVF injections cause minimal discomfort, and women should not worry. Most patients experience mild and easy-to-manage pain, especially with guidance from an expert.
  2. Myth: IVF is a very complicated and stressful process. While IVF consists of multiple steps, doctors guide patients throughout the journey. With proper counselling and support, the process becomes much smoother and less stressful for women.
  3. Myth: IVF guarantees pregnancy in one cycle - IVF increases the chances of pregnancy but may not be successful on the first attempt. Success depends on factors such as age, health, and underlying fertility conditions. So, do not get disheartened if the first cycle fails. The first cycle provides a lot of information, and certain steps can be taken, along with changes made to the next attempt, in order to improve the chances of success.

Understanding the facts and debunking common myths can help reduce anxiety and build confidence in couples.

Couples often hesitate to opt for IVF due to the fear of injections and the assumption that the process will be extremely painful or emotionally exhausting. However, with advancements in fertility care today, IVF has become far more patient-friendly, safe, and comfortable than most people imagine. One of the biggest myths is that IVF injections are administered painfully multiple times throughout the day. In reality, most injections are scheduled and simple to administer, and many couples are even taught how to take them comfortably at home.

Another important aspect people often overlook is that IVF treatment today is highly personalised.

While some women may experience temporary bloating, mild cramps, mood changes, or fatigue due to hormonal medications, these symptoms are usually manageable and closely monitored by the facility team. Most women can continue their daily routine during treatment without any major challenges. Equally important are support, counselling, and clear communication with the fertility team, which help reduce anxiety and build confidence. It is necessary to understand that IVF is a step-by-step guided process designed to give couples hope and a better chance at parenthood. Hence, make sure to consult an expert, clear all doubts, and initiate IVF treatment as soon as possible to achieve the dream of pregnancy.

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AI Enabling Faster And Earlier Cancer Detection In India

Updated May 20, 2026 | 01:00 PM IST

Summary​Use of AI is not without challenges: knowledge of proper tools and applications is critical. Results can not be relied upon blindly, and an expert is very critical of their analysis. Sometimes there may be an improper result that needs to be filtered out.
AI Enabling Faster And Earlier Cancer Detection In India

Credit: AI generated image

Everyone knows that when cancer is detected early, cure rates are far superior, side effects are much less, and treatment expenses are also less.

Diagnosis of cancer depends upon carrying out various tests and then their analysis to reach a conclusion.

How AI Supports Cancer Diagnosis

These tests are radiological, like Chest X-ray, CT scans, MRI, Mammography, etc., and in histopathology, analysis of tissue, be it a small biopsy, large specimen handling, or Frozen Section. AI is empowered with large data to suggest and analyze minute patterns that are difficult for a human mind to comprehend, supported by machine learning.

With the use of AI in the analysis of radiological data, it points out suspicious changes (data is fed into its memory), but they are not very clearly visible to the human eye. Hence, it alerts the radiologist to have a close look at that and enhances accuracy and reduces the chances. It is the radiologist who takes the final call because it has to be correlated with the patient’s clinical findings and other information from other investigations of the patient.

Early detection of breast cancer has received a big boost from the integration of AI in the analysis of mammography data. Similar applications are also used by pathologists when they are examining the tissues because the final diagnosis of cancer can be obtained on histopathology only.

Challenges In The Use Of AI

Use of AI is not without challenges: knowledge of proper tools and applications is critical. Results can not be relied upon blindly, and an expert is very critical of their analysis. Sometimes there may be an improper result that needs to be filtered out.

It's time to accept that AI is present and not the future, and we need to learn, adapt, and use it to the benefit of mankind. India is making great strides in AI, and many startups have also come up that are doing a great job.

The real strength of AI in the care of cancer mainly lies in its ability to support the doctors in making faster, sharper, and more well-informed decisions. It can also reduce delay in diagnostics, improve efficiency of screening, and help in detecting cancers at a stage where outcomes of treatment are much better.

End of Article

Extreme Summer Heat, Pollution Can Take A Toll On Your Eyes: Here’s How To Stay Protected

Updated May 20, 2026 | 02:21 PM IST

SummaryThe India Meteorological Department (IMD) has issued an orange alert for Delhi until May 25, cautioning residents about prolonged heatwaves and excessive heat conditions expected over six consecutive days.
Extreme Summer Heat, Pollution Can Take A Toll On Your Eyes: Here’s How To Stay Protected

Credit: AI generated image

Amid rising summer temperatures, along with pollution, eye specialists today warned that the heat and dust can add stress on the eyes, leading to dryness, allergies, infections, and irritation.

Delhi witnessed its first official heatwave day of the month on Tuesday, as scorching sunshine and dry winds pushed temperatures beyond 45°C across several parts of the city.

The India Meteorological Department (IMD) warned that conditions are likely to worsen over the coming days, with temperatures expected to rise to nearly 46°C on May 20.

The weather department has also issued an orange alert for Delhi until May 25, cautioning residents about prolonged heatwaves and excessive heat conditions expected over six consecutive days.

Allergies, Dryness, and Infections Common In Summer

Speaking to HealthandMe, Dr. Bhavatharini M, Senior Consultant Ophthalmologist at Dr. Agarwal's Eye Hospital, said that summer conditions can significantly impact eye health.

“Summer places added stress on the eyes, particularly in cities like New Delhi where heat, dust, and pollution are significant factors,” she said.

Dr. Bhavatharini explained that common concerns during the season include dryness caused by increased tear evaporation while

  • watching screens,
  • allergies triggered by environmental irritants,
  • UV-related damage,
  • infections linked to swimming in poorly maintained pools.
Also read: What Is Favipiravir? COVID-Era Antiviral Now Used In Hantavirus Response In UK

Dr. Kalpana R, Senior Consultant, Ophthalmology at SIMS Hospital, also warned of problems that affect the eyes during this season, such as

  • allergies,
  • dryness,
  • seasonal infections,
  • viral and bacterial infections,
  • swimming pool infections,
  • migraine headaches.

She stressed the importance of maintaining proper hydration and following a balanced, nutritious diet to support eye health during the hotter months.

How To Prevent Eye Health In Scorching Summers

Dr. Bhavatharini advised people to take simple preventive measures, such as wearing UV-protective sunglasses, staying well-hydrated, avoiding rubbing their eyes, and using protective goggles while swimming.

“Persistent redness, irritation, or blurred vision should not be ignored and warrants timely evaluation by your eye specialist,” she added.

Dr. Kalpana further recommended wearing protective eyewear outdoors to shield the eyes from harmful UV rays and glare.

People travelling on bikes should wear helmets with visors to reduce exposure to dust and pollution, while swimmers should use swimming goggles to prevent infections and injuries associated with pool water.

For allergies, she advised people not to rub their eyes even if they experience itching.

“Just as a home remedy, you can use an ice pack over the closed eyelids or splash cold water over the closed eyelids to get some immediate relief,” she told HealthandMe.

Avoid Self-Medication

The experts also warned against self-medication in case of eye infections.

“And for viral infections and bacterial infections, if you feel that you get a sticky discharge and redness, you must immediately go to an ophthalmologist and get it treated. Never use over-the-counter medicines for any of your infections,” Dr. Kalpana said.

She added that people with common cold symptoms should wear masks and avoid touching commonly used surfaces if they have signs of an eye infection, as infections can spread through secretions.

End of Article