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How much do you actually know about your own body and how it works? Which organs do what, or what surprising discoveries science has made along the way?

Well, now’s your chance to find out. We’ve rounded up some curious facts and fascinating tidbits from the Facebook page Medical Journal Daily. Scroll down to see how many you already knew and how many will catch you off guard. And of course, don’t forget to upvote your favorites as you go. Enjoy!

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    #9

    A girl with a rare condition showing strength, highlighting curious medical facts about fingers containing no muscles.

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    Isabel Galvez
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    People with this syndrome have a lower life expectancy, unfortunately. Pain tells us when something is wrong.

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    #19

    Florence Nightingale improving hospital sanitary conditions during the Crimean War in medical history context.

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    arthbach
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Ms Nightingale was a horrific nurse. Patients under her nursing care died at a far greater rate than other nurses. However, she was an absolutely brilliant hospital administrator. The reduced mortality rates were based on this work, not nursing. The true founder of modern nursing was Mary Seacole. She was a traditional healer and nurse, born to a Scottish father and Creole mother in Jamaica. She faced a great deal of racism.

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    #23

    Hand holding a book outdoors, illustrating curious medical facts about fingers containing no muscles and stress reduction benefits.

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    Trillian
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This makes me wonder how stressed I would feel if I didn't read for hours each day and drinking tea while doing it.

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    #25

    Close-up of body hair growth showing fine hairs on skin, illustrating curious medical facts about fingers containing no muscles.

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    Renee Kamphuys
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Is this why some ppl can grow extremely long hair and for some it just doesnt grow past a certain point?

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    #26

    Feet sticking out from white bed sheets in soft morning light illustrating curious medical facts about fingers containing no muscles.

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    keyboardtek
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    And walking during the day moves the tailbone, which acts like a pump for spinal fluid to be pumped into the brain. That is why sitting all day ages the brain.

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    #27

    Close-up of a person touching a pimple on their chin, illustrating curious medical facts about fingers containing no muscles.

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    martymcmatrix
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    When working thoracic surgery, I learned that a LOT of pus can accumulate in one's chest...is there anything better than placing a chest tube and draining about 1000ml of creamy, smelly pus??? 🤭 🙋🏽

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    #30

    Newborn baby feet wrapped in pink cloth, illustrating curious medical facts about fingers containing no muscles.

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    Nathaniel He/Him Cis-Het
    Community Member
    1 week ago

    This comment has been deleted.

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    #33

    Child holding throat with red highlight, illustrating curious medical facts about fingers containing no muscles.

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    Sally Moen
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Having tonsils removed was a common surgery for children, I guess it stopped due to the reasons listed in this post.

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    #34

    Woman wrapped in a blanket staying warm indoors, illustrating medical facts about how fingers contain no muscles.

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    Kabuki Kitsune
    Community Member
    1 week ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This is also why, if you're hot (say you've been out in the sun and sweating a lot), when you urinate, it will cause you to temporarily feel cooler. Urination is known to cause a drop in blood pressure, which has the effect of making you feel cooler. You aren't actually any cooler, it's just a perception.

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    #37

    Person in plaid pajamas holding stomach and lifting toilet lid illustrating curious medical facts about fingers containing no muscles.

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    Littlemiss
    Community Member
    Premium
    1 week ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I have a kmart bladder. I swear it hears a tinkle of water and thinks its holding 2 litres of water. Having had to drink 2 litres of water in one sitting for an exam, I don't recommend it.

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    #39

    X-ray style image of the human throat with highlighted larynx muscles illustrating curious medical facts about fingers containing no muscles.

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    Sally Moen
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    In the future, we will have the technology to talk on our phones without being overheard, through subvocalization. I've read sci-fi stories where this is used, and this post explains how it becomes possible. I can see how this tech can benefit society every time I'm on public transportation and I get to hear both sides of a phone conversation on speaker

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    #40

    Close-up of a person holding their stomach, illustrating curious medical facts about fingers containing no muscles.

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    keyboardtek
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    And that protective mucous layer is what anti inflammatory d***s reduce, which is why they cause bleeding ulcers.

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    #41

    Person holding their hand showing fingers, illustrating the medical fact about fingers containing no muscles.

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    T'Mar of Vulcan
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Chemotherapy can also cause this. It can go away afterwards or not. I still have a bit, but not as bad as when I was on chemo.

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    #49

    Illustration of the hyoid bone in the neck, highlighting curious medical facts about muscles and bones in the human body.

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    Littlemiss
    Community Member
    Premium
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    It is also the bone broken during manual strangu*lation. It's a key sign of it found during autopsy

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    #50

    Man holding sore thigh muscle after workout, illustrating muscle soreness and medical facts about muscles.

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    Mreoww
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I’m pretty sure lactic acid causes cramps, not muscle soreness. Exertion causes an oxygen debt, so the body uses glucose instead, for energy, not oxygen, and lactic acid is the byproduct. It causes the cramps people often get in their sides.

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    #54

    A young girl in graduation attire symbolizes curious medical facts about fingers containing no muscles in the human body.

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    The Majestic Opossum
    Community Member
    Premium
    1 week ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    For anyone unfamiliar with this term, an Associate Degree is still a degree in the typical sense, just as a Bachelors, Masters, and Doctorate are all still degrees, dispite different amounts of time involved in achieving them. It is typically earned as a post secondary education and indicates significantly more educational attainment than a diploma or certificate. To anyone that disagrees, yet does not hold any post secondary degree of their own: Have you considered just not commenting? I hear that is a solid option when you are ignorant of which you're speaking.

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    #57

    Man wearing a black mask coughing, with highlighted lungs illustrating odor receptors regulating airflow and detecting harmful substances.

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    howdylee
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Apparently these receptors are damaged in smokers, because they can't seem to detect the stench from their cigarettes.

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    #62

    Close-up of a person’s leg with visible varicose veins, highlighting curious medical facts about fingers contain no muscles.

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    Susie Elle
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I don't think the image shows varicose veins, but simply little veins right below the skin. Varicose veins are bulging.

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    #64

    Close-up of a person receiving a Botox injection, illustrating curious medical facts about muscles and pain relief.

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    arthbach
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This is incorrect. Botox was originally used to treat eye disorders. It was later used for cosmetic purposes

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    #68

    Woman eating a pink donut from the fridge, illustrating curious medical facts about hunger and nutrient signals in the body.

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    Upstaged75
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I actually never experience hunger. It's weird. I have scar tissue in my esophagus that causes it. I can literally go almost 24 hours without eating and not feel hungry. It's terrible for me because I wait until I get cravings - which are not usually for healthy food. And no I'm not thin either. I tend to be a late night eater.

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    #73

    X-ray of an elbow showing heterotopic ossification where muscle and connective tissue turn into bone, a rare medical condition.

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    Upstaged75
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    And at some point they have to decide what their final "position" will be. Sitting or standing/lying down. Because after a point they're going to be frozen that way for the rest of their life.

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    #74

    Close-up of a hand showing skin texture with a fact about nerve damage and finger muscles explained by medical insights.

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    Sue User
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Hair does not grow on my legs below a certain point. This started with bad circulation lesding to nerve damage

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    #75

    Close-up of skin with moles examined under a magnifying glass, illustrating unique medical facts about the human body.

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    and_a_touch_of_the_’tism
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    But if one looks weird, get it checked out! Remember ABCDE: asymmetry, border irregularity, color, diameter > 6cm, and evolution/ change over time

    #76

    Red blood cells flowing through a vein, illustrating curious medical facts about blood and human biology.

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    Bored Sailor
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This is wrong, they will carry both. My son had a bone marrow transplant from his little sister and he did take on some appearance traits as well. He wears a medical bracelet because if in an accident he gets blood typed it will come up as AB which he was A and daughter is B so now he types out as AB.

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    #77

    Close-up of a child holding a lollipop near their mouth illustrating curious medical facts about fingers containing no muscles.

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    KrazyChiMama
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Interestingly I’m going thru menopause now and sugar will induce hot flashes if I consume it in the evening.

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    #78

    Woman blowing nose with tissue, illustrating a curious medical fact about muscles and sneezing reflex during sleep.

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    Bored Sailor
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    So when my wife told me I was sneezing nonstop in my sleep and I did not know because I was a sleep means she must have imagined it.

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    #79

    Young woman with red hair smiling outdoors, illustrating curious medical facts about fingers containing no muscles.

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    and_a_touch_of_the_’tism
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I’m blonde. It’s nice because you can’t see my leg hair, but you also can’t really see my lashes. It’s also definitely getting more brown/beige as I get older

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    #81

    Illustration showing hair texture determined by follicle shape with round, oval, and elliptical follicles and hair types.

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    Auntriarch
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    My second cousin said to her mother that her son had deformed follicles. Her mother snapped back "no he hasn't, I've changed his nappy, I'd have noticed!"

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    #86

    Person using nail clippers on fingernail, highlighting curious medical facts about fingers containing no muscles.

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    Mreoww
    Community Member
    1 week ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Really? I’ve always thought my ring fingers’ nails grew the fastest. I think my pinkies come next.

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    #87

    Human body with highlighted diaphragm in orange, illustrating curious medical facts about muscle and nerve pathways.

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    Learner Panda
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This could be either referred pain or a result of the gas (carbon dioxide) used to inflate the abdomen for an operation.

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    #89

    Woman holding her mouth and stomach seated on a couch, illustrating medical facts about fingers containing no muscles.

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    Anyone-for-tea?
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I have never understood why I vomit when my CRP goes up? What does my body think it’s doing then?

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    #90

    Three redheaded young women in white shirts, illustrating curious medical facts about fingers containing no muscles.

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    KrazyChiMama
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Incorrect. They feel less pain not more…source natural red head who’s never had a sore throat with strep throat and ruptured tympanic membrane with no ear pain.

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    #95

    Person working late on computer in dark office, illustrating medical facts about fingers contain no muscles.

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    KrazyChiMama
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Yep sitting eight hours a day is the new smoking in terms of effects on your health. A Cardiologist told me this first hand.

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    #96

    Orange soup in a jar with pumpkin seeds, illustrating curious medical facts about fingers containing no muscles.

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    Ace
    Community Member
    1 week ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Yeah, it's no the soup, it's the 800 calories that are doing that. It's a quite well understood link between obesity and T2, which is why d***s like ozempic have been developed.

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