Why are some people Allergic? | #aumsum

By Adem Lewis / in , , , , , , , , , , , , , , , , , , , , , , , , , , , /

It’s AumSum Time. Why are some people allergic? Because they didn’t take my autograph. No. People can be allergic to a wide range of
things. Some of the most common ones include milk,
peanuts, pollen, shellfish, etc. An allergy occurs. When our immune system mistakenly identifies
a normal innocuous substance as a harmful intruder. Hence, it produces antibodies to kill the
intruder. And in the process, gives rise to itching,
runny nose, watery eyes, etc. Thus causing an allergy. Now, according to hygiene hypothesis, allergies
are caused due to clean environments. During childhood, exposure to germs allows
our immune system to identify harmful substances. However, if children are kept in extremely
clean environments. And not exposed to germs at all, then their
immune system fails to develop properly. And instead, starts attacking harmless substances,
thus causing an allergy. For example, if such a person inhales some
harmless pollen. His nose starts creating extra mucus to trap
the pollen, making his nose run. And thus, causing an allergy. Why does sunlight make you sneeze? Because sun teases our nose. No. Wait. I’ll explain. Sneezing caused by sunlight or bright light
is called photic sneezing. According to a prevailing theory. It happens because of a thick nerve bundle
called the trigeminal nerve. The trigeminal nerve detects or senses irritants
in our nose. Thus, triggers sneezing to expel them out. The trigeminal nerve lies quite close to the
optic nerve. Which sends visual information from our eyes
to the brain. Now, in some people this optic nerve is over
sensitive. Just like me, right? Oh. Just listen. When bright light suddenly stimulates the
optic nerve. The optic nerve mistakenly transmits some
signals to the nearby trigeminal nerve. Hence, the trigeminal nerve misinterprets
this signal as an irritant in the nose. And thus, triggers sneezing. How to stop a sneeze? By saying Cheese. Oh dude. At least once think of a sensible answer. A sneeze is controlled by the trigeminal nerve
present in our face. When irritants like dust and pollen enter
our nose. The trigeminal nerve triggers sneezing to
expel them out with huge force and pressure. Now, many people close their nostrils and
mouth to stop a sneeze. But this can lead to transfer of force and
pressure inside their heads. Thus damaging their eardrums or other tissues. Normally, sneeze should not be stopped. But in exceptional situations. A relatively safe way to stop a sneeze is
to press our finger above our upper lip. Since the trigeminal nerve is also present
above our upper lip. Such pressing action also sends a signal through
that nerve to the brain. This interrupts the sneeze response and distracts
the brain. Thus helping in stopping our sneeze. What is an allergy? It is a magic spell. No. Allergy is an overreaction of our immune system
to usually harmless substances. Like peanuts, milk, pollen, etc. These substances are called allergens. Our immune system has white blood cells or
lymphocytes. Which protect us from foreign invaders such
as bacteria, viruses, parasites, etc. These invaders are called antigens. When a lymphocyte detects an antigen, it produces
antibodies. Antibodies destroy antigens and thus, protect
us. Now, if an allergen such as pollen is inhaled
by an allergic person. The lymphocytes of the allergic person for
unknown reasons think that the allergen is an antigen. Hence, lymphocytes overreact and produce antibodies
which start attacking the allergen. Besides this, as a protective response. Some immune cells also trigger production
of excess mucus. Resulting in running nose. They even give rise to itching throat and
watery eyes. Thus causing an allergy.

100 thoughts on “Why are some people Allergic? | #aumsum

  1. Make a video about
    When was human evolve
    Also if accoding to bible it say there is 2 people they eat apple blah blah blah …… Then how do they Populate to about now billion of people

  2. I have a allergy when I eat hot food and go out side into the cold night, I sneeze nonstop.. IT'S HELL

  3. Narrator: why does sunlight make you sneeze?

    Aumsum:(sneezes) cause sun teases our nose!

    Me: …you don't have a nose though Aumsum 😐

  4. I am so thankful that I’m not allergic to anything that has to do with foods, animals, substances or objects . So I can eat whatever the hell I want to eat and be with animals . And touching any objects and substances .( if it’s harmful then I can’t touch it) . . But I know that I am allergic to bees, poison ivy, . Because everyone is allergic to it.

  5. Aumsum i am very happy to get this
    I am a victim of this suffering from years
    No medication course helps me to get rid of this
    Can please make an another video
    Regarding to get over this problem
    If you do so it would be very helpful to me
    & I'll be thankful to you ever
    Please consider my request.

  6. Hello aumsum!!! I had already asked you to make a video on human nature but I am requesting again…… Please upload it 🙄🙄

  7. And again i am allergic to dirt so it has nothing to do with super clean and super dirty or normal places

  8. My Brother has an Allergy issue (Continuous Sneez), Now I know it is related to the ( improper function of the immune system )

  9. 0:48 that’s the same thing that happen to me when I’m 5 but my immune system didn’t do any favours

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