2007-01-23 00:29:03 · 17 answers · asked by Elty82 1 in Science & Mathematics ➔ Biology
probably because we were once cavemen and nervousness or anxiety was part of the hunt , if you were asked to face and kill a meat eating dinosaur , a hollow feeling in your stomach might help your resolve .
2007-01-23 00:35:03 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Adrenaline diverts blood from non-essential systems to your muscles and brain when you are nervous. This is possible as your nervous system has control over the circular muscles that ring all of your blood vessels, so some can be tightened and others relaxed to make the blood circulate where the body needs it.
Part of fight or flight. The function of the guts are non essential (they can wait) in survival situations. Butterfly's is the sensation your stomach gives you when suddenly deprived of it's usual blood supply.
2007-01-23 00:37:35 · answer #2 · answered by mince42 4 · 0⤊ 0⤋
adrenaline is a hormone released when u nervous ..
it does many things .. one of them is stimulates 'peristalysis', this is the movement of the gut. peristalysis will try to digest food as fast as possible so nutrients can be absorbed quicker and can be released to prepare u for the situation u r nervous for.
the 'peristalysis' of the gut = butterfly effect
2007-01-23 12:19:14 · answer #3 · answered by Sea Bass 4 · 0⤊ 0⤋
Overstimulation of the adrenal glands, which prepares you for the "fight or flight" reponse and blood rushing to areas where it's most needed in difficult situations ie head and heart, not the stomach, which accounts for the fluttery feeling.
One of the actions of adrenalin is to constrict the capillaries leading everywhere except the lungs, heart and brain, in order to enable better responses.
2007-01-23 00:38:49 · answer #4 · answered by a nickname 2 · 1⤊ 0⤋
wen u get excited bout sum thin a hormone known as the adrenaline is released from da adrenal gland which is located on top of da kidney's. so wen ur adrenaline is released u get butterflies a ticklish feelin because of this nd also ur breathin bcomes harsher , blood flows faster ur whole body metabolism quickens....
2007-01-23 00:34:10 · answer #5 · answered by teendevil21 1 · 0⤊ 0⤋
Same reason lots of people throw up when nervous. It's the 'fight or flight' reflex kicking in, but leaning heavily towards flight. You can run faster on an empty stomach.
2007-01-23 00:32:44 · answer #6 · answered by crispy 5 · 0⤊ 0⤋
those butterfly's are your nervous system, that reflect on your stomach, and you feel things moving in there. your hands get cold ect. that is the respond of what you are feeling, it could that you are in front of the person that you love or you scare.
2007-01-23 00:52:06 · answer #7 · answered by RED ROSE 5 · 0⤊ 0⤋
butterflies in your stomach are one of a many responses to stress as blood leaves the digestive tract and rushes to the vital organs as part of the 'fight or flight' mechanism...or not
2007-01-23 03:15:58 · answer #8 · answered by EGYPT 1 · 0⤊ 0⤋
Adrenaline - the bodies natural high!
Somw people like the feeling so much they partake in dangerous activities, we call these adrenaline junkies. Much like a narcotic addict they can't get enough of the feeling.
Ever been sky-diving? You should! you'll understand what I mean!
2007-01-23 08:35:16 · answer #9 · answered by Rainbow-Taster 2 · 0⤊ 0⤋
we release a hormone that messes with our usual body balance. it gives us an upset stomach, can act as a laxative or just give us a headache. some people feel a serge of adrenaline and love that feeling. but its mainly due to an extra release of hormones.
2007-01-23 00:33:11 · answer #10 · answered by chatterbox15 4 · 0⤊ 0⤋