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we all do it and don't know how.it is a natrial reactin are you stupid didn't you know that

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16y ago

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Can you sneeze and not blink?

The fact is you can go search every where and ask any one but blinking your eyes while you sneeze is a natural body reaction. When you see a bright light you sneeze and your eyes close so that they can shut longer than when you blink so you won't hurt your eyes . As much as you try not to blink you cant because when you sneeze your entire body shuts down for that time so your eyes close as well. Another reason why you naturally blink when you sneeze is that if you did not blink while sneezing, your eyes would pop out.


Does the lens in your eye attract light first?

No part of the eye "attracts" light. Light enters the eye by passing through the cornea and the aqueous humour before getting to the lens. After being focused by the lens, light passes through the vitreous humour to the retina.


What is the average speed of a blink of an eye?

The average human eye blink takes between 300 and 400 milliseconds. That's between 3/10th and 4/10ths of a second. See related link. The average blink rate, which measures how many times in a given period the average adult blinks, is around 10 blinks a minute, but this varies quite a bit based on the individual, and things like medications and nervous disorders.


How many times a day do you blink?

The average infant only blinks once every minute or so, but adults can blink at varying frequencies between three to fifteen times per minute depending upon activity. For adults, this will produce a total of around 10,000 blinks per day. When concentrating or actively processing input, blink rates decrease; when reading, for example. When at rest, blink rates increase. Higher blink rates can also signify anxiety, deceit or a lack of restful sleep. Dust, bright light and other environmental conditions that may induce eye-strain can dramatically increase blink rates, as can viral and bacterial infections that affect mucous production and lacrimal function. If the average adult blinks around three to fifteen times per minute and is awake for sixteen hours of the day, they blink between 2,880 and 14,400 times per day, probably averaging about 9,600 (ten per minute).


A reflex that does not pass through the brain is termed as?

Simple, unconditioned or natural reflexes do not involve the brain. These reflexes occur when a receptor that goes to the spinal cord is stimulated by an impulse or effector. The effector neuron sends a response to the muscle or the gland thus causing an instant action. An example of this type of action would be when you blink your eye due to strong light.