Image Credit: Canva

Image Credit: Canva

Updated Dec 18, 2024 | 06:00 AM IST

7 Scientifically Mind-Blowing Facts About The Human Body

SummaryYour body’s capabilities are astounding. From your gut’s "second brain" to the fact that your skin reduces air pollution, discover these mind-blowing facts about the human body and how it operates.

The human body is a marvel of engineering and biology, a symphony of interconnected systems working together in perfect harmony. From the moment we wake up to the time we drift off to sleep, our bodies perform countless functions that keep us alive and thriving. While we often take these processes for granted, a deeper dive into the body’s capabilities reveals some truly astonishing facts that are as fascinating as they are unexpected. Prepare to be amazed as we uncover mind-blowing details about the human body that highlight its incredible complexity and adaptability.

Gut is Your “Second Brain”

Did you know your gut is the only organ in your body with its own independent nervous system? Often referred to as the "second brain," the gastrointestinal system contains about 100 million neurons embedded in its walls, enabling it to function autonomously. Even if the primary connection between your gut and brain, the vagus nerve, were severed, your gut would still carry out its critical digestive functions. This independent nervous system coordinates processes like digestion, nutrient absorption, and waste elimination without requiring direct input from the brain. The gut’s autonomy underscores its vital role in maintaining overall health.

Stretching Beyond Imagination

Your circulatory system, composed of arteries, veins, and capillaries, is nothing short of astonishing. If the blood vessels of an average adult were laid out end-to-end, they would stretch for approximately 100,000 miles—enough to circle the Earth four times! This intricate network is crucial for delivering oxygen and nutrients to every cell in your body. The smallest vessels, capillaries, make up 80% of this length and are essential for facilitating the exchange of oxygen and carbon dioxide. It’s awe-inspiring to think that something so vast is contained within each of us.

Skin Cells

Your skin, the largest organ of your body, is constantly regenerating. Every hour, you shed about 200 million skin cells, amounting to a staggering 5 billion cells every day. While this may sound like a lot, your epidermis is hard at work replacing these cells to maintain the skin’s integrity. Interestingly, these shed cells contribute to reducing indoor air pollution. Skin oils like squalene, which are released with dead skin cells, can neutralize harmful ozone levels indoors by up to 15%. This dual function of protection and pollution reduction makes your skin a silent but powerful ally.

The Transparent Cornea

Your cornea, the transparent layer that covers the front of your eye, is a marvel of nature. Unlike most tissues in the body, the cornea has no blood vessels. This transparency is vital for vision, allowing light to pass through without obstruction. Scientists have discovered that a protein called VEGFR-3 prevents the formation of blood vessels in the cornea, maintaining its clarity. This unique property has significant implications for medical research, especially in developing treatments for eye diseases and conditions that cause abnormal blood vessel growth.

Your Gut’s Influence on Mood

Beyond digestion, your gut plays a surprising role in mental health. The microbiome—a vast collection of bacteria in your gut—produces approximately 95% of the body’s serotonin, the neurotransmitter responsible for regulating mood and well-being. This connection between gut health and brain function underscores the importance of maintaining a balanced diet and a healthy lifestyle. The gut-brain axis demonstrates how intricately our systems are linked, with the microbiome influencing everything from stress responses to emotional behaviors.

Music’s Impact on Your Heart and Breathing

The music you listen to can do more than just elevate your mood—it can also influence your heart rate, blood pressure, and breathing. Studies have shown that the tempo and intensity of music directly impact these physiological parameters. For instance, faster tempos and crescendos can cause your heart rate and respiration to increase, while slower music has a calming effect. This synchronization between music and the body has led to therapeutic applications, including stroke recovery and stress management. Familiar tunes, in particular, have been found to amplify these benefits, making music a powerful tool for physical and emotional healing.

Pregnancy and the Brain

During pregnancy, a woman’s brain undergoes significant changes that enhance her ability to connect with her baby. Research has shown a reduction in grey matter in areas associated with social cognition, improving the ability to interpret emotions and nonverbal cues. These changes, thought to be evolutionary, foster mother-infant bonding and enhance a mother’s responsiveness to her child’s needs. Remarkably, these adaptations can last for up to two years postpartum, providing a lasting advantage in nurturing and protecting offspring.

The human body is an extraordinary masterpiece, full of mysteries and marvels that continue to captivate scientists and researchers. From the gut’s autonomous nervous system to the mood-regulating powers of the microbiome, and from the pollution-fighting capabilities of dead skin cells to the transformative changes in a mother’s brain during pregnancy, each discovery deepens our appreciation for the body’s complexity.

These facts not only highlight the wonders of human biology but also remind us of the importance of caring for this incredible vessel we inhabit. The more we learn about our bodies, the more there is to celebrate and marvel at.

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Updated Apr 28, 2025 | 02:15 PM IST

Grief Can Change The Way Your Heart Functions, Especially After 50

SummaryHeartbreak is a painful experience, both mentally and physically. Many people talk about how this experience altered their life and functionality. However, many do not realize that heartbreaks are also capable of altering your heart’s anatomy.

“Heartbreaks happen to many people, it’s ok” or “You’ll move on, it’s a heartbreak, not the end of the world” and similar phrases as these are ones we have all heard. However, how much truth these sentences hold has been questioned. Many people experience mental health issues after experiencing heartbreak like depressive episodes and anxiety symptoms. However, did you know that heartbreaks can actually affect your heart?

The pain associated with heartbreaks is often thought of as psychological, but it can actually weaken the ability to pump blood effectively. This is a condition known as the broken heart syndrome, or Takotsubo Cardiomyopathy.

According to the Harvard Health Publishing, it is a sudden change in the shape of the heart's left ventricle, which is its primary pumping chamber. This is a concerning issue as it weakens the heart’s ability to effectively circulate blood throughout the body.

The British Heart Foundation explains that some people, like women over 50s are more susceptible to getting this issue. It could also be an issue if you have other mental health issues like anxiety or depression.

Symptoms Mimic A Heart Attack

Harvard explains that most cases of this syndrome occur in the age frames of 58 to 75. 5% of these women thought they were having a heart attack. The symptoms can indeed be very similar to those of a heart attack and may include:

  • Sudden, intense chest pain
  • A feeling of pressure or heaviness in the chest
  • Difficulty breathing
  • Heart palpitations (irregular or forceful heartbeat)
  • Feeling faint or lightheaded
  • Nausea

Can Stress Cause This Issue?

While the precise cause of Takotsubo cardiomyopathy remains under investigation, medical experts believe that a sudden surge of stress hormones, such as cortisol and adrenaline, triggered by intense emotional distress, plays a significant role. The syndrome often occurs following significant emotional events like bereavement, serious illness, or trauma, which is why it's commonly referred to as 'broken heart syndrome'. But that is not the only reason why you may experience this, other causes may include sudden drop in blood pressure, severe pain, asthma attack, intense fear, serious illnesses or surgery, etc.

When doctors are diagnosing this syndrome, they look for things like, no evidence of blockages in the angiogram, which helps them rule out heart attacks, they also use imaging techniques like echocardiogram, that will show abnormalities in the left ventricle.

Fortunately, it is temporary. The condition is typically managed with medications aimed at reducing the strain on the heart and minimizing the risk of complications. These medications can include:

  • Diuretics (to reduce fluid buildup)
  • Beta blockers (to slow heart rate and lower blood pressure)
  • Blood thinners (to prevent blood clots)

Can You Prevent Broken Heart Syndrome?

While most people recover fully, approximately one in ten patients may experience a recurrence of broken heart syndrome. Additionally, some individuals may have persistent symptoms or lasting changes to the shape of their heart, potentially requiring long-term medication.

Once a person has fully recovered from broken heart syndrome, it is advisable to focus on managing stress levels, adopting a healthy diet, and maintaining regular physical activity to help prevent future episodes.

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(Credit-Kidney Cancer UK TikTok)

Updated Apr 28, 2025 | 11:15 AM IST

Vague Symptoms Of This Deadly Disease Caused Woman To Mistake It For Menopause

SummarySometimes looking beyond the surface level can help you avoid grave mistakes. While you may see a regular health symptom, further probing can reveal the true nature of the seeming non-issue.

Misleading signs are often worse than no signs, you may be working on the symptoms when the disease is already doing damage to your body. When something goes wrong in our body, most of us can catch onto it. However, we almost always tackle the most obvious issue, not knowing there could be something worse going on.

A similar issue happens to a UK-based woman, named, Loise who was suffering with high blood pressure and dismissed it as a symptom of menopause. Soon she found out that it was in fact not menopause that she was going through, rather she had been battling kidney cancer and did not know about it.

Cancer is the leading cause of death worldwide with nearly 10 million deaths in 2020. Cancer is a generic term for many different diseases that affect parts of one's body, according to the World Health Organization. Kidney cancer is the sixth most common cancer in UK adults and 14th most common cancer worldwide. According to Cancer Research UK, the average number of cases reported for kidney cancer in 2017-19 UK was 13,834. It is also more common in the elderly, aged 80-84, and there has been a 92% rise in the incidence rates of kidney cancer since the 1990s.

Misleading Symptoms and Important Warnings

In the Kidney Cancer UK's TikTok page, Louise's highlights the critical importance of recognizing that not all symptoms in middle-aged women are solely due to hormonal changes. In her case, the elevated blood pressure was an indicator of an aggressive form of kidney cancer.

Often, kidney cancer doesn't manifest with clear and distinct symptoms, and it is frequently discovered incidentally during tests conducted for other health concerns. Louise emphasized the challenge of diagnosis, "Symptoms are unfortunately vague, especially for women, as it includes high blood pressure, night sweats, blood in your urine and flank pain. GPs often relate these to menopause symptoms." She strongly advises everyone to "regularly scan your body" and to pay attention to persistent discomfort. She urged, "How long have those niggling pains been there? Get them checked - always better to be safe than sorry!"

What To Expect After The Diagnosis?

Reflecting on her own diagnosis, Louise recounted having "high blood pressure but unseen blood" in her urine. She explained how her cancer was detected, "I was lucky routine bloods picked up an issue with my liver, prompting ultrasound."

Her treatment journey involved significant surgical interventions, "I have now had two major surgeries to remove cancer and my kidney within the last 15 months. I'm three weeks post open surgery and recovering well." The outcome of recent tests brought encouraging news, "The news that all the biopsies came back as not cancer has been amazing."

Currently, Louise is managing side effects from her immunotherapy treatment. Looking ahead, Louise remains realistic but hopeful "My cancer was the most aggressive at grade 4 so there will always be a high chance of it coming back, but medications and research is changing all the time and I have faith that the surveillance scans will help us nip anything untoward in the bud!"

Kidney Cancer Symptoms You Should Look Out For

While kidney cancer often progresses without noticeable symptoms, the NHS indicates that when they do appear, they can include:

  • Blood in your pee
  • A lump or swelling in your back, under your ribs, or in your neck
  • Persistent pain between your ribs and waist
  • Unexplained loss of appetite or weight loss
  • Persistent fatigue or lack of energy
  • A recurring high temperature
  • Excessive sweating, particularly at night

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Can Natural Disasters Impact Your Mental Health? Here's What Experts Say

Credits: Canva

Updated Apr 28, 2025 | 10:00 AM IST

Can Natural Disasters Impact Your Mental Health? Here's What Experts Say

SummaryRecent flooding in Kentucky’s Franklin County highlights how natural disasters not only threaten physical safety but also leave lasting impacts on mental health, experts and studies reveal.

Throughout the first week of April, the state of Kentucky witnessed flooding, due to heavy rains, specifically in the Franklin County. The reason being, it is located on the Kentucky River for over 200 years. While such natural disasters can cause distress in terms of physical safety, expert also reveals that such natural disasters could impact one's mental health too.

Natural disasters like Kentucky's recent flooding can have serious impacts on victim's mental health, reveals Christal Badour, associate professor of psychology at the University of Kentucky and a trauma recovery research.

As reported in Weku NPR, the UK psychologist explains that reactions to traumatic events typically fall into short-term and long-term symptoms. These include people feeling overwhelmed, anxiety, and difficulty communicating. While most people eventually recover without lasting effects, some may struggle for a longer duration.

These long-term issues include depression or post-traumatic stress disorder (PTSD). Badour also notes that people who already had a mental health difficulty before the natural disaster could also further feel isolated. Along with that, individuals with fewer financial resources could be at more risk of long-term problems.

Are These Long-term Symptoms Common?

According to a report from Clinical Psychology Review, 20 to 80% of people will experience long-term symptoms after a disaster. These rates could vary depending on the type of disaster one faces. PTSD symptoms often improve after the first year, however, depression and anxiety are more likely to linger.

What Do Other Experts Say?

There have been previous studies too that confirm the same. As per a 2024 study, titled Impact of Natural Disasters on Mental Health: Evidence and Implications, by Eamin Z Heanoy and Norman R Brown, notes: "Natural disasters are large-scale catastrophic events, and they are increasing in frequency and severity. Converging evidence indicates that the mental health consequences of disasters are extensive and are often associated with trauma and the disruption of personal and socioeconomic factors in people’s lives."

However, the study also notes that although most individuals who experience disaster-related traumatic events do not develop mental illnesses, some could experience adverse psychological effects of the disaster.

Another expert, Nomy Levy-Carric, MD, MPhil, writes for Mass General Brigham, which is an institute dedicated to serving the community and enhancing patient care, teaching, and research, notes that natural disaster can indeed leave a lasting impact on individuals, families, and often an entire community.

Levy Carrick notes: "A person’s reaction depends on many factors, including their past experiences, what is happening in their life at that moment, the nature of their exposure, and the support available to them as they rebuild. The sudden loss of control and uncertainty can be overwhelming, making it harder to cope in both the short and long term."

What Are The Types Of Natural Disasters?

  • Hurricanes and tropical storms
  • Earthquakes
  • Tornadoes
  • Wildfire
  • Floods
  • Blizzards and winter storms
  • Drought and extreme heat
  • Landslides and mudslides

The doctor notes the Psychological First Aid or PFA provides a structured way to support emotional recovery immediately after a disaster.

However, notes Badour, there is still a major gap in treatment. Most disaster relief services only last up to one year.

“After that year has passed, a lot of people feel like there's no one there to help them, especially if you're in a community that was already lacking in mental health support and resources,” she said.

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