Dr Sermed Mezher MBChB MRes
@drsermedmezher • 351,500 subscribers
Videos
POV: Your Lights Look Like This. Sources- PMID 36749017 @drafted2much on TT Astigmatism occurs when the transparent front surface of the eye, called the cornea, or the natural lens inside the eye has an irregular curve. Instead of being shaped like a round basketball where light bends evenly in all directions, an astigmatic eye is shaped more like an oval football. This uneven shape causes light entering the eye to focus on multiple points rather than a single sharp point on the retina, resulting in blurry or distorted vision at any distance. In most cases, astigmatism is a natural genetic trait present from birth or something that develops gradually during childhood and early adulthood. It can also be caused by eye injuries, surgical procedures, or rare progressive eye conditions that cause the cornea to thin and cone outward over time. Contrary to popular belief, everyday habits like reading in dim light or sitting too close to a screen do not cause or worsen astigmatism. #vision #driving #lights
Dr Sermed Mezher MBChB MRes217,300 views • 11 days ago
“My Breastmilk When My Daughter is Sick” #compared. Sources- PMID 25505951 jessikabaileyg on TT It is true that your breastmilk changes in composition when your infant gets unwell. This can lead to a large increase in the percentage of white blood cells in your milk, helping them to fight off the infection. That being said, just because breastfeeding has benefits it does not mean that formula feeding should be demonised. That is still a valid option when breastfeeding just doesn’t work for you because of a variety of reasons. The benefits of breastfeeding should not be used to shame moms that have formula fed. #mothers #pregnant #babies
Dr Sermed Mezher MBChB MRes469,400 views • 3 months ago
“All Wrestling Mats Look Like That” #nasty. Ringworm, a common fungal infection, can easily be transmitted through contact with contaminated surfaces, such as wrestling mats. These mats can harbor the fungi responsible for ringworm, particularly in environments where people engage in close physical contact and sweat heavily, creating an ideal breeding ground for the fungus. Transmission of Ringworm: Fungal Contamination: Dermatophytes: Ringworm is caused by dermatophytes, a group of fungi that thrive in warm, moist environments. Wrestling mats, often damp with sweat, provide an excellent habitat for these fungi. Sweat and Skin Cells: When wrestlers sweat, they shed skin cells and other debris that can contain the ringworm fungus. This material can accumulate on the mat, increasing the risk of transmission. Direct and Indirect Contact: Direct Skin Contact: Wrestlers who come into direct skin-to-mat contact can pick up the fungi left by an infected person. This is particularly likely when skin is broken or abraded, providing an easy entry point for the fungus. Indirect Contact: Even without direct contact, wrestlers can get ringworm by touching the mat with their hands and then touching other parts of their body, such as their face or limbs. #rash #skin #wrestling
Dr Sermed Mezher MBChB MRes3,000,000 views • 2 years ago
Why he Can Never Shower With his Wife #cycle. On average, women tend to have a slightly higher body temperature than men, and this phenomenon is influenced by a combination of physiological and hormonal factors. Metabolic Rate: Women often have a slightly slower metabolic rate than men. A higher metabolic rate generates more heat, contributing to an elevated body temperature. Menstrual Cycle: Hormonal fluctuations during the menstrual cycle can impact body temperature. A slight rise in temperature is common after ovulation, potentially influencing the overall average. Thermoregulation: The female body's thermoregulation mechanisms, responsible for maintaining a stable internal temperature, may function with slight variations compared to males. Body Composition: Differences in body composition, such as higher body fat percentage in women, can contribute to insulation and heat retention, affecting overall temperature. Hormonal Influence: Estrogen, a predominant female hormone, can influence thermoregulation and metabolic processes, contributing to a slightly elevated baseline temperature. Pregnancy: During pregnancy, hormonal changes and increased metabolic demands can further elevate body temperature in women. Age-Related Factors: Body temperature can vary with age, and women may experience fluctuations associated with menopause, impacting the overall average. Physical Activity: Levels of physical activity can influence body temperature. Variations in activity levels between genders may contribute to temperature differences. #BodyTemperature #PhysiologicalDifferences #HormonalInfluence #MetabolicRate #Thermoregulation #GenderPhysiology #MenstrualCycle #HormonalFluctuations #BodyComposition #EstrogenEffect #PregnancyChanges #Menopause #StressResponse #GenderHealth #MetabolicDifferences #WomenInScience #EvolutionaryAdaptation #HumanBiology #HealthScience #TemperatureVariability #fyp #fypシ #medicine
Dr Sermed Mezher MBChB MRes3,100,000 views • 2 years ago
POV: You Did This as a Child. Sources- PMID 36660938 emf14649 on TT Head banging in young children is often a harmless, self-soothing behavior that helps them release tension, relax, or fall asleep. The rhythmic movement provides calming sensory input during times of frustration, fatigue, or developmental transitions. While distressing for parents to watch, it is a common phase that most toddlers outgrow as their verbal skills and emotional regulation improve. Caregivers should remain calm and avoid giving the action excessive attention or an intense emotional reaction. Children monitor adults for cues, and if they see head banging triggers panic or heightened focus, they may use it to gain control or demand engagement. Maintaining a neutral environment, ensuring physical safety, and offering gentle distraction prevents the behavior from becoming a reinforced habit. #parents #mothers #pregnant
Dr Sermed Mezher MBChB MRes199,100 views • 2 months ago
POV: An Animal Bit You. Sources- PMID 35687876 World Health Organization @kishswoman on TT The rabies virus enters the body through the saliva of an infected animal, usually via a bite or scratch that penetrates the skin. Once inside the tissue, the virus infects nearby muscle cells to multiply before attaching to nerve endings in the peripheral nervous system. It then travels backward along the inside of these long nerve fibers toward the spinal cord, moving at a slow but steady pace while completely hidden from the immune system. Once the virus reaches the spinal cord, it ascends rapidly into the brain, marking the onset of the central nervous system infection. In the brain, the virus multiplies exponentially, causing severe inflammation and encephalopathy that triggers the classic symptoms of rabies, such as confusion, agitation, and difficulty swallowing. Because the rabies virus travels along the nervous system rather than through the bloodstream, post-exposure vaccines must be administered promptly before the virus reaches the protective barrier of the central nervous system. #rabies #animal #hospital
Dr Sermed Mezher MBChB MRes39,300 views • 14 days ago
POV: It’s “THAT” Ultrasound. Sources- PMID 42701530 @Katie on TT During an abdominal ultrasound, sound waves must travel through several layers of skin, muscle, and tissue before reaching the pelvic organs. To cover this distance, the scanner uses lower-frequency sound waves, which penetrate deeper into the body but naturally create a softer, less detailed image. An internal ultrasound provides a much clearer view simply because it places the small probe closer to the area being examined. By bypassing those outer layers of tissue, the sound waves travel a much shorter distance and can operate at higher frequencies, producing significantly sharper and more detailed pictures of the pelvic structures. #women #ultrasound #pregnant
Dr Sermed Mezher MBChB MRes14,900 views • 5 days ago
“That’s Not a Dummy” #wait. Sources- PMID 36506494 @LaceyW44 on TT The LUCAS device is a mechanical chest compression system that delivers steady, high-quality CPR to patients in cardiac arrest. It provides consistent, perfectly timed compressions without tiring, making it especially helpful during long transport rides in ambulances or during complex hospital procedures. By taking over the exhausting physical work of compressions, it allows emergency personnel to focus on other critical tasks like administering life-saving medications and managing the patient's airway. Despite its benefits, the LUCAS machine is a specialized piece of equipment that is not available in every emergency response unit, home, or public space. In most cardiac arrest situations, those vital first few minutes rely entirely on a bystander starting immediate manual CPR before specialized equipment ever arrives. Learning high-quality manual CPR remains an irreplaceable skill, ensuring you can step in immediately to save a life using only your hands whenever a medical emergency occurs. #cpr #cardiacarrest #heartattack
Dr Sermed Mezher MBChB MRes42,200 views • 24 days ago
POV: You’re at Risk for Rabies. Sources- PMID 39604401 poopdewood on TT Rabies is widely considered one of the deadliest diseases on Earth because it has a near-total mortality rate once clinical symptoms appear. The virus is neurotropic, meaning it specifically targets the central nervous system, traveling slowly from the site of a bite through the peripheral nerves until it reaches the brain. During this incubation period, which can last weeks or even months, the disease is entirely preventable with a series of post-exposure vaccinations. However, once the virus enters the brain and begins to cause inflammation, known as encephalomyelitis, the window for effective medical intervention slams shut. At this stage, the immune system is unable to clear the infection, and the biological damage becomes irreversible, leading to death in virtually 100% of cases. #rabies #vaccine #health
Dr Sermed Mezher MBChB MRes310,700 views • 7 months ago
Extremely Emotionally Aware? This Might Be Why. Sources: PMID 18837615 PMID 25573648 PMID 30468894 kirkilmad on TT Intellectualizing your emotions is a defense mechanism where a person treats an emotional experience as a cold, academic problem to be solved rather than a feeling to be felt. By shifting the focus to high-level data, complex terminology, and abstract theories, the individual creates a "cognitive buffer" between themselves and the raw vulnerability of their internal state. This process allows someone to talk about a traumatic or painful event with clinical detachment, effectively "thinking" their way around a feeling to avoid the physical and psychological discomfort that comes with true emotional processing. While this can be an asset in a crisis (allowing for clear-headed decision-making), it becomes a barrier to healing when used habitually. When you intellectualize, you are essentially staying in the analytical parts of the brain, such as the prefrontal cortex, while ignoring the limbic system where emotions are actually generated. Because the body "stores" the physiological tension of unprocessed emotions, simply understanding the reason for your pain doesn't actually release it. Over time, this can lead to a sense of being "stuck" or disconnected from oneself, as the person becomes an expert on the theory of their life while remaining a stranger to the actual experience of living it. #emotions #mentalhealth #therapy
Dr Sermed Mezher MBChB MRes319,200 views • 8 months ago
What’s the Diagnosis? #scan. Sources- PMID 35731858 dr.alia.bangash.r on TT Gallbladder adenomyomatosis is a benign, hyperplastic condition characterized by an abnormal overgrowth of the gallbladder's mucosal lining alongside a marked thickening of its muscular wall. The primary mechanical driver behind this development is chronically elevated intraluminal pressure inside the gallbladder, often caused by motility issues, chronic inflammation, or stone formation. Under this persistent pressure, the inner mucosal layer herniates outward through tiny defects in the muscular layer, forming characteristic, deep mucosal invaginations known as Rokitansky-Aschoff sinuses. As these mucosal pockets push deep into the thickened smooth muscle tissue, they create microscopic diverticula throughout the gallbladder wall. Bile can then become trapped and stagnant within these sinuses, leading to the concentration and crystallization of cholesterol, which clinicians often spot as bright, reflective artifacts on diagnostic ultrasounds. Over time, the smooth muscle layer responds to the ongoing irritation and pressure by undergoing reactive muscular hypertrophy, completing the structural transformation that defines adenomyomatosis as a benign yet structurally distinct lesion. #ultrasound #health #medicine
Dr Sermed Mezher MBChB MRes59,300 views • 3 months ago
POV: The Saline is About to Start. Sources- PMID 3516979 sly_sense on TT Plasma donation is a profoundly impactful act that serves as the critical foundation for countless life-saving medical treatments. Often referred to as "liquid gold," this protein-rich component of human blood is essential for manufacturing specialized therapies that treat individuals with rare, chronic, and severe conditions. For patients battling primary immunodeficiencies, hemophilia, or complex autoimmune disorders, these plasma-derived medications are not just helpful, they are an absolute daily lifeline that replaces missing proteins or antibodies, allowing them to lead healthy, active lives instead of facing constant hospitalizations or life-threatening infections. Beyond managing chronic illnesses, donated plasma plays an indispensable role in emergency medicine and acute trauma care. When individuals suffer massive blood loss from severe accidents, profound surgical complications, or catastrophic burns, direct plasma transfusions are immediately administered to stabilize blood volume and provide crucial clotting factors that prevent fatal hemorrhaging. Because plasma cannot be artificially synthesized in a laboratory, the entire global supply relies entirely on the continuous generosity of voluntary donors, making every single donation a direct, irreplaceable contribution to sustaining modern healthcare systems and saving vulnerable lives. #donateblood #plasma #health
Dr Sermed Mezher MBChB MRes43,700 views • 3 months ago
This Woman’s Body Totally Changed Her Skin Colour #pigment Vitiligo is a skin condition characterized by the loss of skin pigmentation, resulting in the development of white patches on the skin. This depigmentation occurs due to the destruction of melanocytes, the cells responsible for producing melanin, which gives color to the skin, hair, and eyes. Vitiligo can affect people of all ages, genders, and ethnic backgrounds, and its exact cause remains under investigation. While vitiligo is not painful or contagious, it can have a significant impact on an individual's self-esteem and body image, especially when the patches appear prominently. Treatment options include topical corticosteroids, UV therapy, and, in some cases, surgical procedures. Living with vitiligo requires resilience and acceptance, and many individuals affected by it become advocates for increased awareness and understanding. #Vitiligo #SkinCondition #Depigmentation #MelaninLoss #SkinDisorder #SkinPigmentation #AutoimmuneDisease #Dermatology #BodyImage #SelfEsteem #SkinHealth #VitiligoAwareness #SkinPatches #TreatmentOptions #Diversity #Acceptance #SkinCare #DermatologicalCare #Melanocytes #ChronicCondition #SkinAwareness #InvisibleIllness #fyp #fypシ #medicine
Dr Sermed Mezher MBChB MRes84,900 views • 3 years ago
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