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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Why Women Want Hormonal Health Care, Not Just Pregnancy Care

Updated Jul 18, 2026 | 03:00 PM IST

SummaryHormonal health affects every stage of a woman’s life. Early awareness, healthy habits, and timely medical care can improve overall well-being and quality of life.
Why Women Want Hormonal Health Care, Not Just Pregnancy Care

Credit: AI

Women’s health is particularly discussed in the context of pregnancy and childbirth, but even hormonal health deserves attention at every stage of life. From puberty to menopause, hormones influence physical, emotional, and reproductive well-being. This article highlights the importance of paying attention to the hormonal health of women.

Women today are experiencing hormonal imbalance. While maternity care remains important, many women are looking for support in managing hormonal issues that affect their daily lives, careers, relationships, and even long-term well-being.

How Hormonal Imbalance Affects Overall Well-Being

Did you know? Hormones play a crucial role in regulating menstrual cycles, mood, sleep, energy levels, metabolism, skin health, bone strength, and fertility. So, understand that when hormones become imbalanced, women can experience various signs and symptoms such as irregular menses, severe menstrual pain, acne, weight gain, hair loss, fatigue, mood swings, sleep disturbances, and difficulty conceiving.

Moreover, various conditions such as Polyendocrine Metabolic Ovarian Syndrome (PMOS), thyroid disorders, endometriosis, and perimenopause-related hormonal changes can affect quality of life.

For many years, women sought medical attention only during pregnancy or when trying to conceive. However, now, women in their twenties, thirties, and forties are seeking guidance for even menstrual health, hormonal disorders, stress-related symptoms, and preventive care.

Women now want answers to symptoms that were previously dismissed as "normal" or simply part of being female. Regular health check-ups, timely evaluation of menstrual irregularities, and management of conditions such as PMOS and thyroid disorders can help women improve their quality of life. Hormonal well-being also plays an important role in maintaining heart health, bone density, metabolic health, and mental wellness.

Also read: Postpartum Breast Cancer May Be Biologically More Aggressive; Here’s Why

Signs Women Should Never Ignore

Many women are no longer willing to dismiss symptoms as a "normal part of being a woman." Heavy periods, severe menstrual pain, persistent fatigue, unexplained weight gain, and ongoing mood disturbances should not be ignored and may require medical evaluation.

Tips to Support Better Hormonal Health

Vital tips for improving hormonal health in women: It will be necessary for women to have a well-balanced diet rich in fruits, vegetables, whole grains, and protein. Exercise daily and support metabolism and hormone balance. Aim for 7–8 hours of quality sleep every night. Stay stress-free by doing yoga, meditation, or relaxation techniques. Women should quit smoking, alcohol, and illicit drug use, and not ignore irregular periods, severe menstrual pain, or unexplained weight changes. It is also necessary for women to schedule timely gynecological and health check-ups.

Hormonal health influences every stage of a woman's life, affecting both physical and emotional well-being. Hence, women must ensure timely check-ups not only during pregnancy or menopause but also at every stage of life. Women should prioritize hormonal health not only during pregnancy or menopause but throughout their lives. Early awareness, timely evaluation, and preventive care can go a long way in improving long-term health and quality of life. Don’t wait anymore and seek timely help. So, women, get going now!

By Dr. Pavana H.N. Consultant - Obstetrician & Gynaecologist, Motherhood Hospitals, Sector 48, Noida

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The Rise of Robotic Joint Replacement: How Technology Is Transforming Orthopaedic Surgery

Updated Jul 18, 2026 | 01:00 PM IST

SummaryOrthopaedic surgery is undergoing a transformation with the advent of robotic joint replacement. Robotic Joint Replacement is revolutionizing orthopaedics with cutting-edge features.
The Rise of Robotic Joint Replacement: How Technology Is Transforming Orthopaedic Surgery

Credit: AI

Joint replacement surgery was one of the most successful surgeries in modern medicine, allowing millions of people to enjoy the benefits of mobility and pain relief despite the debilitating effects of advanced arthritis and joint damage.

The use of robotic-assisted technology is ushering in a new era in orthopaedic surgery today. Robots are not taking the place of surgeons, but they are helping to improve accuracy in surgery, to aid in planning, and to help provide more personal care.

Robotic Surgery Supports, Not Replaces, the Surgeon

As an orthopaedic surgeon, I see patients all the time who think that the surgery is done by itself, the robot. In fact, this is a procedure that is performed by the surgeon and the robot.

The robot serves as an advanced surgical assistant, giving the surgeon real-time guidance and very accurate measurements, but all key decisions and surgical steps are still left up to the surgeon.

Precision Drives Better Joint Replacement Outcomes

Also read: Your Joints Are Working Overtime. Are You Helping Them or Hurting Them?

Precision is the biggest benefit of robotic joint replacement. Each patient's anatomy is different and subtle differences in bone alignment, ligament balance and implant placement can affect the long-term success of a joint replacement. Robotic systems utilize detailed imaging and computer mapping to develop a plan for a surgery that is unique to the patient before or during the surgery. This will help to maintain a more accurate placement of the implant so that the joint can be more accurately recreated and moved as it is designed to move.

This accuracy can mean a clinically significant benefit. Correct positioning of the implant can minimize the need for excessive bone removal, enhance joint stability, balance the soft tissues, and possibly increase the duration of the implant's life. Many patients also find that they recover more easily, experience less post-operative pain, and are more confident in getting back to everyday life, but results vary depending on many factors such as overall health, rehabilitation and the severity of the joint disease.

Robotic technology is increasingly being applied in knee and hip replacement surgeries, especially for those suffering from osteoarthritis. Robotic assistance is a major advantage in knee replacement surgery due to the critical role accurate positioning plays in ensuring the function and satisfaction of the implant. Robotic systems offer continuous feedback, allowing surgeons to make accurate adjustments during the procedure, which would be difficult without them.

Who Is the Right Candidate for Robotic Joint Replacement?

But keep in mind that not all patients require robotic surgery. While the use of acetals and PEKK has become more common in recent years, conventional joint replacement is still an excellent treatment, having been used for decades with great success. There are a number of factors which influence the choice of robot assistance, such as patient anatomy, case complexity, surgeon experience and availability of suitable technology. However, just because there is a robot does not automatically equate to a successful outcome; the skill and experience of the surgeon operating the robot still plays the primary role in the success of surgery.

Another false belief is that robotic surgery has no risks. As with all surgery, there are risks associated with joint replacement which include infection, blood clots, stiffness, loosening of the implant or revision surgery. Robotic technology aids in a more accurate surgery, however, it cannot eliminate all complications. It's still crucial to carefully select the right patient, to perform a careful surgery and to provide full rehabilitation after the surgery.

The Future of Personalized Orthopaedic Surgery

Also read: Osteoporosis Affects Nearly 20% Of US Women Aged 50+: Why Screening Is Key

The advancement toward personalized medicine is one of the most thrilling developments in robotic-assisted surgery. With the advent of modern technology, the surgeon is able to use more than a basic one size fits most implant and surgery planning to fit the individual patient's anatomy and functional requirements. This individualised treatment is designed to improve patient comfort, return the joint to a more normal movement and maximise the long term function.

The recovery from a robotic joint replacement is comparable to that of traditional surgery, but some patients may experience faster recovery from the surgery because the surgery has been conducted with greater precision on the soft tissue. Early mobilization, proper physiotherapy, pain management and following the proper rehabilitation protocols are all important, regardless of the use of robots or not. Surgery is just the start of the healing process.

Robotic technology is also revolutionizing the surgeon's education and training. Real-time data and guidance, coupled with advanced navigation systems, improve decision-making and consistency in implant placement during surgery. With the ongoing advancement of AI and machine learning, future robotic platforms can enhance surgical planning even more by forecasting patient-specific outcomes and supporting complex clinical decisions.

While these are great strides, technology should never replace the human element in medicine. While the latest in cutting-edge equipment is essential for a successful joint replacement, the experience of the surgeon, clinical judgment, communication and patient-surgeon relationship are all vital to the success of the procedure. Each treatment plan is a custom one that is based on both the technology and realistic expectations along with evidence-based care.

The patient should be knowledgeable about the surgery options, results to be expected, benefits to be accrued, and possible risks involved in the surgery. While robotic surgery is an important advancement in orthopaedics, it is just one part of a patient's care plan and is not a substitute for surgical skill.

Orthopaedic surgery is definitely going to be a more technologic future. Robotic assisted joint replacement is a major advancement toward more precise, personalized, and patient-centered surgery. Research is ongoing and technology is becoming more available to be used to help manage degenerative joint disease, and this role is likely to increase over time. Finally, the mission continues to be the same: to get patients moving, to alleviate pain, and to restore an active and independent life with confidence.

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John Cena Blames 'Eye Mites,' Not Age, For His Blurry Vision

Updated Jul 17, 2026 | 09:00 PM IST

SummaryDemodex mites are tiny, eight-legged organisms that live naturally on human skin, particularly around hair follicles. Measuring just 0.15 to 0.4 millimetres, they are invisible to the naked eye but are present on the skin of almost every adult.
John Cena Blames 'Eye Mites,' Not Age, For His Blurry Vision

Credit: X.com

When John Cena started noticing blurry vision, he assumed it was simply part of getting older. But the worsening eyesight was also accompanied by redness, itchiness and crusting around his eyes.

“I had a lot of redness and itchiness, and every once in a while, waking up with eye crusties and stuff. At the same time, given my age — I'm 49 now — my vision was going a little bit, so I just figured it was par for the course. But because my vision was going, I needed to see if I needed glasses or prescriptions.”

Until then, Cena had delayed getting his eyes checked. He believed that the symptoms were caused by bright lights, excessive screen time or ageing.

However, an eye examination gave him a surprise. Cena learned that his symptoms were caused by Demodex blepharitis, a condition he says he had never heard of.

“Diagnosed with Demodex blepharitis, which I didn't even know existed.”

What Are Demodex Mites?

Also read: Study Decodes Why COVID Survivors Continue To Suffer Vision Problems

Demodex mites are tiny, eight-legged organisms that live naturally on human skin, particularly around hair follicles. Measuring just 0.15 to 0.4 millimeters, they are invisible to the naked eye but are present on the skin of almost every adult.

These microscopic mites feed on sebum (the skin's natural oil) and dead skin cells, helping remove accumulated debris under normal conditions.

How Do Demodex Mites Work?

Demodex mites are most active at night. They emerge from hair follicles after sunset because ultraviolet (UV) light is harmful to them. While people sleep, the mites feed, crawl and reproduce on the skin's surface.

They are also believed to be stimulated by melatonin, the hormone that helps regulate sleep, creating a unique relationship between humans and these naturally occurring organisms.

When Can Demodex Mites Become A Problem?

Although harmless in small numbers, Demodex mites can cause problems if they multiply excessively—a condition known as demodicosis.

According to Dr. Richard Locksley, professor of medicine at the University of California, San Francisco, an overgrowth of Demodex mites can contribute to:

  • Rosacea
  • Blepharitis (eyelid inflammation)
  • Acne-like breakouts
  • Itchy, inflamed skin

Read More: Wegovy More Likely To Cause Rare Blindness Than Ozempic And Other Similar Drugs, Recent Study Finds

People with weakened immune systems are particularly vulnerable because their bodies may be less able to control mite populations. In addition, inadequate sleep may increase oil production, providing more nourishment for the mites.

Should You Be Worried?

For most healthy people, Demodex mites are a normal part of the skin microbiome and are not considered harmful. Problems generally arise only when their numbers increase significantly.

To help reduce the risk of overgrowth:

  • Wash your face every night with a gentle, non-comedogenic cleanser to remove excess oil and debris.
  • Remove eye makeup and false eyelashes before bed, as these can encourage mite buildup.
  • Get adequate sleep, since poor sleep may increase sebum production.
  • Consult a dermatologist if you experience persistent redness, itching or inflammation around the eyes or skin.

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