Why does having something pushed into my ear make me cough?

on a few occasions i have experienced the feeling of everything around me going slow, two examples are when playing cricket and i dived to catch the ball and also when playing football and the rare occasions when I have shot and scored a goal, after asking my mates they have at somepoint experienced something similar is there something in the brain that causes this feeling.

Why do you feel so uncomfortable when being stared at or when looking into somones eyes? And why do dogs feel thretend when you look into thear eyes?

Do you belive that people are born homosexual? or is it just a preference that they choose?

I get this feeling on occasions where i feel a sensation of 'pins and needles' where its like pins and needles but its painfull and uncomfortable and i show up with a red rash in the area where i am feeling this. i dont think the doctors even know what it is. i tend to get the feeling if i go into a really hot place from a cold place or if i am put under pressure. i get the feeling all over my body at times and it feels horrible. the docs thought it was to do with addrenaline i think, i cant remember. i just wonder what causes it. its now a rarity that i get the sensation but it has always made me wonder

let us consider an object which consists of the 7 colors. now all the seven colors having different refractive indexes of their own will meet at different points. but to see the all the colors the intersection must be at the retina. so only one of the color must be seen, isn't it?

I understand that black people are dark people they are near to the equator. but why do chinese people look so different to us? why do their eyes only look half open? i cant think of any other origin where people look like that?

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why do for example german people look diff to english. english look diff to americans. what gave them people the characteristics that they have ( in brief why does what location you are in specify what you look like )

Homeopathy remedies are prepared by dilution & shaking. There is not any molecule of mother tincture in the final remedies after 24X times dilution (1 part in 10 to the 24th power). In other words, it is pure water. So How it can effect on the human body? And how it is working?

i have just ate a plate of pasta. but how long does it take for the pasta to release energy? i eat carbs an hour before i go to the gym as i belive by then the energy from the food would have been released. is this true?