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?

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.

Perimenopause has become a regular conversation and its been high time that people are talking about it. You can see friends discussing it, social media coverage has increased and more importantly women are discussing this with their gynaecologists.

For decades, menopause was thought to be a single event - that is the day the periods stopped, but today we understand that the transition lasts for a few years. These changes can affect the quality of a woman’s life and hence I’m glad the conversation has gained more traction.

Perimenopause-Related Changes

Also read: Yoga Or Strength Training: What Can Help Manage Hot Flashes During Perimenopause?

First lets understand what perimenopause is. It literally means “around menopause” Its a transition phase where the ovaries gradually change the production of the hormones, mainly oestrogen and progesterone. It usually begins in the early 40’s but some women may experience it earlier.

One of the commonest signs of this is a change in the pattern of your menstrual cycle. Periods can be become longer or shorter, heavier or lighter. Basically the menstrual cycle becomes a bit unpredictable.

But periods aren’t the only sign. A woman may start experiencing disturbed sleep cycles. She may wake up randomly at 3am or feel exhausted despite getting 7-8 hours of sleep. Hot flushes and night sweats may also occur. Mood changes, irritability, anxiety and difficulty in concentration can also affect her quality of life.

Some women complain of being forgetful or more commonly used term "experience brain fog”. They forget names, lose train of though or struggle to multitask. There can also be a change in libido, vaginal dryness, discomfort during intercourse, headaches, join pain and alterations in skin and hair.

Besides this there could possibly a change in the body composition. A woman may notice increasing abdominal fat or find difficulty in maintaining her weight even though her lifestyle hasn’t changed.

Why The Current Focus On Wellness Is Important?

Also read: Explained: Why Some Women Start Experiencing Joint Pain As They Approach Menopause

The good part of this increase in awareness is that women are paying more attention to their health early rather than waiting of menopause. This transition phase provides a golden opportunity to reassess exercise, nutrition, sleep and preventative healthcare.

Strength training becomes even more valuable as it helps maintain muscle and bone mass.

Adequate protein, calcium and Vitamin D intake along with a balanced diet helps long term metabolic and bone health.

During this time, its important for a woman to even assess her cardiovascular health. Blood pressure, cholesterol, blood sugar and weight don’t just become numbers on the chart anymore, they become important markers of future health during this time.

Not Every Symptom Should Be Blamed On Hormones

However every label shouldn’t be blamed on perimenopause. Thyroid disorders, anaemia, vitamin deficiencies, depression and few other medical conditions can produce similar symptoms.

Unusually heavy bleeding, bleeding between periods or after intercourse also warrants medical assessment rather than being dismissed as “just hormones”.

With the increasing accessibility of GLP-1 weight-loss drugs such as Ozempic and Wegovy, more people are shedding pounds. But the transformation can come with its own caveats — sagging skin, hair loss and dental issues that may require further attention.

And if you thought women were the only ones taking the plunge, think again.

While women still account for the overwhelming majority of aesthetic treatments, demand among men in the US has risen in recent years, particularly among those who have undergone significant weight loss through GLP-1 therapies.

More US Men Seek Cosmetic Treatments

According to the American Society of Plastic Surgeons, men underwent 1.7 million cosmetic procedures in 2024, including surgeries and minimally invasive treatments such as laser skin resurfacing and Botox injections. That was a 2.7% increase from the previous year.

Of the total, more than 98,000 were surgeries, with eyelid surgery, liposuction and tummy tucks among the most commonly performed procedures.

“I’ve seen probably a doubling in the number of male patients that I treat over the last one to two years,” Sean Alemi, a New York-based facial plastic surgeon, was quoted as saying to Reuters.

Also read: Lehengas, Diets & Now Mounjaro: The New Must-Have For Indian Brides?

Experts say demand will keep rising as more weight-loss drugs, including new pill versions, reach the market.

In the first quarter of 2026, nearly 70% of men who underwent surgical procedures had a history of GLP-1 use, Dr. Bob Basu, president of the American Society of Plastic Surgeons, said.

Younger men often seek procedures to remove loose skin and improve the appearance of an athletic physique, while older men are focused on signs of aging, particularly in the face and neck, doctors said.

Rapid Weight Loss May Affect Surgical Outcomes

Read More: GLP-1 Drugs Making You Lose Muscle Along With Fat? Scientists Discover Game Changing Weight-Loss Compound To Tackle It

The growing popularity of GLP-1 drugs has also created a new generation of body-contouring patients, along with new challenges for plastic surgeons, according to recent research by Duke University.

The research suggests that how much weight patients lose — and how quickly they lose it — could affect surgical results when tightening or removing excess skin after massive weight loss.

For the study, published in Plastic and Reconstructive Surgery, Duke researchers analyzed more than a decade of abdominal body-contouring procedures, such as tummy tucks, and found that patients who lost large amounts of weight quickly faced higher risks of surgical complications.

The more than 500 patients studied were grouped based on how they lost weight: through bariatric surgery alone, GLP-1 medications such as semaglutide and tirzepatide alone, or a combination of both.

The highest complication rates were seen among patients who combined surgery with GLP-1 drugs that reduce appetite. These patients not only lost the most weight overall — about 29% of their body weight, compared with 10% among GLP-1 users — but did so at the fastest rate.

A New Challenge for Plastic Surgeons

But those rapid changes may come with tradeoffs, said senior study author and professor of surgery Ash Patel, MBChB, a plastic and reconstructive surgeon at Duke Health.

“These are highly effective weight-loss tools, and they are changing the patient population we see in body contouring,” Patel said. “We’re operating on people whose bodies have undergone rapid, profound changes, and that affects healing.”

Kidneys are two bean shaped structures, located on the back side of the abdomen, one each on right and left side. It filters blood by removing waste products via urine. Besides this it also functions as an endocrine organ, producing hormones like renin (for blood pressure control), erythropoietin (for hemoglobin production) and aids in active vitamin D formation (for bone health).

Though human beings have two kidneys usually, there are situations where individuals can lead a healthy life on one kidney. This could be developmental anomaly (since birth). Congenital absence of one kidney is called renal agenesis, and these individuals lead a normal life with normal kidney function.

Sometimes, a single kidney is acquired due to removal of one kidney for donation. As in a healthy donor gives their kidney to someone in need, whose both kidneys have failed. This is indeed a noble gesture and one that does not come with any significant impact on the donor’s quality of life.

Can You Live With One Kidney After Donation?

Also read: When a Fever Is More Than a Fever: Recurrent UTIs in Children Can Put Kidneys at Risk

The process of organ donation, where a healthy person’s healthy kidney is removed for the therapeutic purpose to benefit another individual suffering from kidney failure, is called donor nephrectomy. The first such surgery was done in the USA in the year 1954, with open surgery.

Now a days, most donor nephrectomies are done either with laparoscopy (key hole surgery) or robot assisted. Thus, a question that often arises in such times is, whether one can live with one kidney after kidney organ donation? To understand this, one should first understand that a donor undergoes a thorough rigorous fitness evaluation to determine if kidney donation is viable.

During this evaluation process, kidney function of both kidneys are evaluated. The kidney donor is deemed fit to donate the kidney only after it is ascertained that the donor has two healthy kidneys free from any disease, and the donor would be able to lead a normal life with one kidney. it is also ascertained that the other kidney transplanted in another is also having good kidney function to survive in the recipient.

What Happens To The Donor After Kidney Donation?

Another commonly asked question that doctors often get is, what happens to the kidney donor with one kidney after donation? Most kidney donors live long healthy life after organ donation. However, it should be appreciated that every individual is different, and age at the time of organ donation matters a lot. Risk is generally low, and they carry out their regular activities as before. Rarely the donor has a slight chance of developing high blood pressure or protein leak in the urine.

However, overall risk of significant kidney disease is <1%, which is considered less than having the similar risk in general population. Though, there may be slightly higher chances of developing high blood pressure during pregnancy in a kidney donor. However, in majority of cases, Kidney donation is generally a safe procedure, and most donors continue to lead healthy, active lives with one kidney. With appropriate long-term follow-up and healthy lifestyle choices, donors can maintain excellent kidney health after donation.

By Dr. Hemant Mehta, Consultant Interventional Nephrologist, Lilavati Hospital and Research Center, Mumbai