why do we scratch when we feel like getting itched ?
539379
Scratching causes another counter irritation and the brain gets distracted. Chk out the  link\n\nhttp://www.ratlab.co.uk/itch.htm
359603
I learned when a mosquito bites you, she's sticking her needle-like mouthpart into your skin and injecting saliva rich in anticoagulating enzymes so the blood will flow smoothly. Some people are sensitive to those enzymes so their skin itches and when you scratch it, it's irritating the skin even more which will lead to redness and minor swelling around the area of the bite. \n\nI could be wrong since my knowledge on the subject is more than 10 years old. ^_^;
1185337
A dog likes to scratch, we know that. \n\nWhen they feel their stomach being scratched (and they're not scratching it) the moving leg is a residual/ghost response..........like they would be doing if they WERE scratching themselves.\n\nWhen someone tickles us or scratches our backs for us we usually have the urge to "help them out"......but it's more like a "leaning into it"  or a retreat response.
222773
Most itchy skin (without any rashes, bumps or lesions) is caused simply by dryness.  If you don't already, use a moisturizer daily.  If you do and are still dry, find a different moisturizer.  If the dryness continues to be a problem, see a doctor to rule out illness and a dermatologist for some prescription moisturizer.
853383
is that a dance? do the itch and yawn!!!! if it is then sweet sweet music is the only thing that can cause it.\n\nyawning is the bodys way of increasing oxygen in the blood through a larger than average intake. you yawn when you are tired because your brain sends a signal requesting more oxygen when it is running slowly.\n\nItching can be casued by many things, irritation to the skin causing localised anaphlactosis (allergic reaction swlling, hives, the bodies immune system does not recognise a substance and so sets off an immune response, this attacks the foreign substance and any cells that are affected, the side affect of this is itiching).\n\nAlso itching can be caused by being  overly hot with circulation interruptions causing an itchy recation to the skin and phsychsomatically, ie say to somebody "imagine being covered in ants" the image of this will cause the body to become itchy even though there is nothing there.\n\nif you are itchyt and yawning i suggest that you have a bath, dont watch any wildlife programmes an ants, and go to bed.
9705
Itchy hands are most often associated with a skin condition or rash. The commonest of these is eczema. This itching could be due to an allergy to something you have come into contact. Common allergy causing agents are household detergents or factors linked to your occupation. \n\n\nIt is very unlikely that the itching is related to your circulation. There are other conditions that give rise to itching but the itch tends to be more generalised all over the body. You will need to visit your GP so he or she can assess your hands and advise you on the likely cause and treatment. If you are worried about anything in particular, it is very important that you tell you're doctor.
583700
This is a itchy inflammation of the skin, characterized by dry, scaly, and thickening.  Stress and tension can increase the itching.  Normally treated with corticosteroid creams and maybe anihistimines.  Sometimes your doc may even prescribe a patch with the meds in it so it decreases the scratching
202375
Eczema can be extremely uncomfortable, because the more it itches, the more it is scratched, and the more it's scratched, the more it itches. This cycle may be triggered by an allergy to a particular food or pollen; it may be a contact dermatitis, caused by a particular fabric, or it might flare up because of emotional tension created by family arguments or anxiety about schoolwork. Eczema should be treated by  the family doctor who may be able to discover its source and prevent further attacks. Advertised cures for eczema cannot control the cause and sometimes make the condition worse.
604016
an itch is caused by an inflammation or irritation of the skin...\nwhich is generally due to some skin disease etc..
124838
I think it could be a mental thing.  I do the same thing.  It's like I have to scratch in so many different places (mind you I actually feel the itch) before I can get comfortable and fall asleep.  It's a possibility?
970067
Long, hot showers or baths can cause overall itching especially this time of year. They dry out the skin. It is called winter itch.\n\n1. Try taking a quick shower with warm water.\n2. Put lotion on body as soon as you get out even before skin\n   is completely dry.
648015
They're trying to change you. It's common for people to try to get under your skin if you're too calm and serene. I don't know why. It's like having an itch. you just have to scratch it.
818880
Nope. Your skin starts to scratch when you are about to get stretch marks. That is because your skin is breaking/stretching and thats why u get an urge to scratch. I guess you ve been putting on weight.
712026
When you exercise, your heart pumps faster and your blood vessels dilate as a mechanism for heat loss due to your energy expenditure.  With exercising, you are detoxifying your body of unwanted wastes and toxins through sweating.  One reason you may be itching is because of the release of  these unwanted wastes through the skin.  This should resolve after exercising and having taken a shower. Another more probable reason is that your blood cells release their histamines, and these mediate the itchy sensation you feel.  This should also resolve after exercising. Not everybody has the same reaction to increase physical activity.  Good luck!
989561
The underlying skin is grafting back together. As it does, it pulls together, much like a stitch pulls two pieces of skin together. This pulling causes the itching sensation you feel.
93913
Itch is produced due to the presence of certain noxious chemicals at the site of itch like histamine e.g. released in allergic conditions like hay fever, or substances produced by local pathogens like cutaneous bacteria that may flourish if a person has little habbit of bathing. These chemicals inturn stimulate nerve endings at specific receptors which take the itch sensation to spinal cord. When we scratch then itching stops because of following mechanisms: 1) either the noxious chemical or agent is removed or 2) the sensory receptor gets exhausted and stops generating impulses because of sudden strain of stimuli during the process of scratching 3) scratching stimulates pain nerve endings which results into supression of further sensations from that area due to reflex inhibition of the neuron. \n\nWhat you have asked can has two mechanisms, i will try to make them clear,\n\n(I). A single neuron does not end by supplying a sigle receptor rather it has many nerve endings which take sensations over a large area and different neurons are interconected with each other, this means that if one neuron at a particular site is stimulated say by those chemicals, sensations wil also be reffered to the areas of other neurons to which that particular neuron is interconnected (this is also the mechanism for "reffered pain") but normally body will preferably perceive that site from which impulses have highest frequency and intensity i.e. the original site of itch, and body will ignore other sites from which weak impulses are coming. When you will itch on that original site, the impulses from that site will vanish suddenly but from the weak sties will continue. In this way will feel as if the same sensation has shifted from original site to another site.\n\n(II). Another mechanism may be that sometimes when you scratch the itching area this cause hault of impulse generation by the receptor at that site but also stimulates other neurons to which the original neuron is interconnected and this results into shifting of same sensation to the skin area of the other neuron.\n\nAlso please keep in mind that certain dermatological conditioins in there mider form like mild allergy, hay fever, urticaria, hives, dermatitis, etc can cause itching because the receptors become sensative due to the presence of histamine and other madiators of allergy, I will recommend if it is a long term problem consult a skin specialist.
754299
An itch is caused by an irritation on the skin.\nA yawn is caused by tiredness.