• @Confused_Emus@lemmy.dbzer0.com
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        2422 days ago

        That fucking trash. I’ve got vasovagal syncope.

        A sudden drop in heart rate and blood pressure leading to fainting, often in reaction to a stressful trigger.

        Common triggers include strain, stress, long periods of standing, heat exposure, or the sight of blood.

        Symptoms include paleness, nausea, sweating, a rapid heartbeat, and fainting.

        It’s inconsistent, though. For example, never had issues with the numbing shots at the dentist. One day they start giving the shots to numb me up, and next thing I remember they’ve got me sitting up over a trash can trying to clear the vomit I was aspirating on. Scared the shit out of those dentists.

        Once while in middle school I lightly nicked a finger with some scissors - barely even bled. All of a sudden I feel nauseous and ask to go to the bathroom. I manage to get out into the hallway before collapsing to the floor, hitting my head at least twice on the way down and traumatizing my classmates who thought I just dropped dead.

        Intelligent design my big gay ass. Damn vagus nerve is a dodgy self-destruct mechanism.

        • Obinice
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          1222 days ago

          You may be a fainting goat. Have you checked for hooves? That’s a good sign you may be a fainting goat

        • Fuck spez
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          22 days ago

          Common triggers include strain, stress, long periods of standing, heat exposure, or the sight of blood.

          Also, the use of caffeine and sometimes other stimulants, usually after they begin to wear off, even (edit: and sometimes especially, due to lack of acquired tolerance) with very infrequent use. Apparently that’s not well known, at least not by most of my fucking doctors.

  • @disguy_ovahea@lemmy.world
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    22 days ago

    *Histamines. Antibodies are far less disruptive. Histamines protect us from larger invaders like worms and other parasites. Antihistamines antagonize histamines at receptor sites, preventing the itchy, red, swelling reaction we associate with an allergen.

    • K[r]ukenberg
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      1722 days ago

      Acktually – IgE(/antibodies) are bound to the surface of mast cells. Antigens/allergens bind to the IgE receptor and actives the mast cell, releasing histamines. Allergy can actually be treated with anti-IgE (monoclonal) antibodies (Omalizumab)!

    • Are you sure histamines are larger than antibodies?

      That’s 17 atoms if I can count correctly.

      Antibodies are made of proteins and should therefore be much larger.

      • @disguy_ovahea@lemmy.world
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        22 days ago

        I just confirmed. They’re only 17 atoms in size. My memory failed me. I edited the comment. Thanks for the correction!