usually, that's how it goes the real thing behind that is when they see you their pupils dilate because they focus in on your face. The person sometimes recoils afterwards because the receptors in the eyes noticed the decrease in amount of light... or they just saw something beautiful.
Yes, studies have shown that both men and women's pupils can dilate when they see someone they are attracted to. This physiological response is linked to increased arousal and interest.
Pupils can dilate for several different reasons. They dilate mainly when exposed to less light, because the dilation helps the person to see better in dim light. They can dilate because of a medicine or an illegal drug. They can dilate because of emotion, but that is not always the reason. See the Related Link below.
When light come into your eye your pupils will get smaller. In a dim or dark room your pupils will enlarge to let in more light so you can see. Also some drugs will make your pupils smaller, or when your high they dilate.
When there is insufficient lights. Pupil will dilates so as to see better in dim light.
I'm not sure exactly why, but your pupils dilate for some scientific reasoning having to do with your brain and what you find attractive, something like that. However this only happens for like a split second, and then the eyes go back to normal.
Pupils dilate when there's not enough light in the room or area you're in. They dilate to let in as much light as possible so you can see as well as you can in the dark. When outside and it's bright, your pupils get smaller because there is too much light. ~ ~Imadork881 changed to Sleenky ^.^
The reason behind why your pupils dilate is because they need to receive more light from their surroundings when it is dark, enabling you to see better. They expand and take in more light, allowing you to see. They contract again when exposed to a lot of light. You can test this by having someone close their eyes and when they open you can have them look directly at a light and you can see their pupils shrink if you look closely.
Pupils dilate to allow more light to fall of the back of the retina. Pupils typically dilate in low light conditions, during states of sympathetic nervous system stimulation, and in response to a number of nervous system stimulant drugs and hallucinogenic drugs.
Well, "dialute" means nothing. If your eyes "dilate," your pupils enlarge, allowing for more light to enter your eye. Essentially--it's your body's way of helping you see better at night or when your adrenaline raises. Sometimes, an opthamologist might use drops to dilate your pupils, in order to diagnose certain diseases of the eye.
Your pupils dilate.
Much like the aperture on a camera the pupils dilate to allow more light to fall onto the optical receptors. In bright settings there is less need for light and pupils constrict.
Yes it can - Caffeine is a stimulant and causes a release of adrenaline. Adrenaline is the hormone which prepares us for 'fight or flight' in stressful situations and it has a number of effects on the body. One of these effects is dilated pupils (if you are going to fight or run away from danger, you will need to be able to see as well as possible!)