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.

Students gaming more than 10 hours a week can have long-lasting negative effects on their physical and mental health, a new Australian study suggests.

Researchers from Curtin University, Perth have found that playing online games for over 10 hours can worsen diets, increase body weight and led to poorer sleep than lighter gamers.

Professor Mario Siervo, Curtin School of Population Health said of the results: "What stood out was students gaming up to 10 hours a week all looked very similar in terms of diet, sleep and body weight. The real differences emerged in those gaming more than 10 hours a week, who showed clear divergence from the rest of the sample."

What Did The Study Find?

Researchers surveyed 317 students across five Australian universities, with a median age of 20, to understand how time spent gaming each week might affect their diet, sleep, and body composition.

Students were categorized as low gamers (zero to five hours a week), moderate gamers (five to 10 hours) or high gamers, who played video games for more than 10 hours each week.

They found that low and moderate gamers showed largely comparable health outcomes but health indicators deteriorated sharply among students whose gaming time exceeded 10 hours a week.

The study found diet quality declined and obesity was more common once gaming exceeded 10 hours a week, with each extra hour linked to poorer diets even after accounting for other lifestyle factors. While high gamers recorded a body mass index (BMI) of 26.3kg/m2, low and moderate gamers fell within a healthier range, with median BMIs of 22.2kg/m2 and 22.8kg/m2 respectively.

Professor Siervo said: "Each additional hour of gaming per week was linked to a decline in diet quality, even after accounting for stress, physical activity and other lifestyle factors."

Additionally, sleep quality was generally poor across all groups but students who played video games for moderate or high amounts of time reported worse sleep than low gamers.

Despite clear results, the expert added that the study does not prove cause and effect but shows excessive gaming is linked to higher health risks, while low to moderate play appears largely fine.

Why Is Playing Video Games Bad For You?

According to the researchers, moderate gaming is not a significant problem for most students but the concern arises when long gaming sessions begin to replace essential daily routines such as eating well, getting enough sleep and staying physically active.

"Our data suggests low and moderate gaming is generally fine, but excessive gaming may crowd out healthy habits such as eating a balanced diet, sleeping properly and staying active.

"Because university habits often follow people into adulthood, healthier routines such as taking breaks from gaming, avoiding playing games late at night and choosing healthier snacks may help improve their overall well-being," Professor Siervo said.

Playing video games for excessive amount of time has also been linked to paving the way for mental health problems such as anxiety, depression, aggression and poor emotional control as well as social/life problems including neglecting responsibilities, isolation, poor relationships, academic/career impact.

Moreover, previous research has also found that playing games for over three hours straight significantly raises the risk of physical issues. Sessions exceeding this time frame can lead to eye fatigue, headaches, neck pain and wrist pain, regardless of the player's age or gender.

This study was published in Nutrition on January 16.

Days after eagle-eyed fans spotted Nick Jonas stepping out of the Golden Globes during the Nikki Glaser-hosted show in Los Angeles, the popstar has now revealed what led to him there.

In an X video from January 11, Jonas was seen standing alone outside of a tent at the Beverly Hilton hotel surrounded by palm trees and green foliage, looking like he was taking a breather while sipping from a glass bottle of water and rubbing his chin.

As the clip began to go viral online, users shared their guess on why he had to exit the ceremony, commenting, "Social anxiety got the best of him." Soon after, he did reveal that he anxiety had "hit him like a gut punch" on X.

Living with Type 1 diabetes, Jonas has previously spoken about the emotional challenges of managing a chronic condition and how it has affected his life.

What Is Social Anxiety?

As explained by Dr Sanil Sinhasan, Consultant Psychiatrist at Mind Care Clinic and SRV Hospital, Mumbai, to Health Shots: "Social anxiety disorder is an intense fear of being judged, rejected, or embarrassed in social or performance situations.

"People with social anxiety often worry excessively about how they look, speak or are perceived by others."

This kind of anxiety is typically triggered by meeting new people, public speaking or even everyday interactions like eating in public, stemming from fears of negative evaluation by others.

Symptoms include blushing, sweating, trembling, rapid heartbeat, nausea, dizziness, trouble speaking, stomach issues. If left untreated, social anxiety can become debilitating as it can also cause fast, shallow breathing, muscle tension, suffocation, symptoms that can intensify anxiety further and lead to serious medical events.

How To Overcome Social Anxiety?

Experts recommend practicing deep breathing and mindfulness to ease social anxiety in public settings. Additionally, lifestyle changes such as exercise, sleep nda healthy diet with mental strategies like challenging negative thoughts and shifting focus outward can also help.

Professional therapies such as Cognitive Behavioral Therapy (CBT) and medication such as antidepressants (SSRIs/SNRIs) can offer deeper solutions for managing fear and building skills.

Regular physical activity can also help release endorphins and reduce tension as well avoiding excess caffeine can support mental health.

Mental health experts also recommend opening up to loved ones and avoiding isolation. Speaking to loved ones and sharing how you’re feeling can help ensure your current state doesn’t aggravate.

Doctors also advise speaking therapist if social anxiety significantly impacts your life as professional help is crucial for lasting change.

Wondering if abnormal bleeding, pelvic pain and leg swelling are signs of something fatal?

According to Dr Ninad Katdare, Consultant Surgical Oncologist, Jaslok Hospital & Research Centre, they may be symptoms of cervical cancer. While many may expect drastic signs such as severe pain, heavy bleeding or obvious illness, identifying certain symptoms can help with early diagnosis and treatment.

Cervical cancer develops in a women's cervix (uterus opening) due to abnormal cell growth, primarily caused by persistent HPV infection, a common infection that's passed through sexual contact.

When exposed to HPV, the body's immune system typically prevents the virus from causing damage however, in a small percentage of people, the virus can survive for years and pave the way for some cervical cells to become cancerous.

Treatment involves surgery, radiation, and chemotherapy, with early detection significantly improving outcomes, though it remains a major cancer in low-income countries. Cervical cancer can also be prevented through vaccination and regular screening (Pap/HPV tests).

Dr Katdare told News18: "In its early stages, it is often more of a whisper than a shout. As a cancer surgeon who has treated hundreds of women with gynaecological cancers, I can say with confidence that recognising these subtle cues can lead to earlier diagnosis and significantly better outcomes."

He recommends looking out for these early signs:

1. Intermenstrual Bleeding

Intermenstrual bleeding occurs between regular menstrual periods, ranging from light spotting to heavier flow, often linked to hormonal shifts, ovulation or infections (cervicitis). However, according to Dr Katdare, this sign should not be ignored as it is one of the most common early warning signs of cervical cancer.

2. Changes In Vaginal Discharge

Vaginal discharge is a normal, natural fluid that cleans and protects the vagina and can vary in color (clear to white), consistency (watery to thick) and amount throughout the menstrual cycle.

But Dr Katdare warns that any sudden or abnormal changes in discharge may be a symptom of the cancer. “Because discharge issues are commonly linked to infections, many women self-medicate or delay seeking care," he said. “While infections are far more common, chronic or unusual discharge especially in older women requires thorough evaluation."

Discharge may become persistent, watery, foul-smelling, or tinged with blood or pink, brown, or rust-colored if you're suffering from this kind of cancer.

3. Persistent Pelvic Pain

Consistent pelvic pain particularly that occurs outside the menstrual cycle or during sexual intercourse should be a point of concern. According to Dr Katdare, "Pain during intercourse, or dyspareunia, is especially important. It should not be dismissed as ‘just dryness’ or an age-related change. In cervical cancer, this pain may result from inflammation or tumour growth involving the cervix and surrounding tissues."

4. Leg Swelling

Unnatural and unexplained leg swelling of one leg, particularly if it occurs on one side may suggest that the cancer is progressing and spreading in the body. “This happens due to pressure on pelvic blood vessels," explained Dr. Katdare, “and should not be ignored."

5. Urinary And Bowel Symptoms

As cervical cancer advances to higher stages, it can begin to affect nearby organs including the bladder and kidneys. Symptoms such as frequent urination, difficulty emptying the bladder, constipation, or rectal discomfort may also begin to develop.

“These symptoms are often evaluated in isolation because they don’t seem related to the cervix," said Dr Katdare, “which can delay the correct diagnosis."

Ultimately the expert advised: "“Cervical cancer does not always announce itself loudly,. Sometimes, it leaves silent clues. The sooner you listen to them, the better the outcome. If something feels ‘off,’ trust that instinct and seek medical advice. Early action can make the difference between a curable disease and a life-altering diagnosis."