Allergy and excess weight

Allergy and excess weight - these two seemingly unrelated problems can be interconnected. Allergies, more precisely anti-allergy drugs can promote weight gain and reduce the dynamics of weight loss. How? Why drugs against allergies can provoke weight gain? To understand this question - a little about allergies.  



Allergic reactions occur as a result of an impaired reaction of the immune system - the development of hypersensitivity to one or another allergen - a substance that causes an allergy.
There are several types of hypersensitivity. Allergies are only immune reactions - hypersensitivity reactions with a pathological increase in sensitivity to a specific allergen.
Allergens are antigens - substances that are perceived by the body as dangerous and foreign, and immunoglobulins are antibodies, that is, defenders against antigens, they bind to the “pest” substance and neutralize it.
During a normal reaction of the immune system, certain types of antibodies are produced when in contact with an allergen, and if an immune response is disturbed, specific antibodies are produced, as a result of which the body develops sensitivity to this substance and an allergic reaction and its symptoms develop upon further contact with the same allergen.
In the body, there are four types of receptors that are sensitive to allergens and are found in various tissues and organs of the body (in blood vessels, brain, smooth muscle, and other tissues).
Allergic reaction can be expressed in various effects:
dilation of blood vessels and increase of their permeability, which provokes edema, spider veins, rhinitis, lacrimation; changing the interpretation of receptor signals and nerve transmission from the skin and mucous membranes with the formation of an itch sensation; bronchoconstriction and bronchospasm; mucus production in the respiratory tract; effects on the central nervous system - stimulation of hormone production, changes in sleep and wakefulness, processes of arousal and inhibition, changes in eating behavior in the form of appetite suppression, etc.
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