Page 1 of 1

WHAT happens

Posted: Tue Jan 18, 2011 10:41 am
by Gordon
To the vascular system when you are under stress ?? Is there a restriction of the blood vessels both veins and arteries ??

Posted: Tue Jan 18, 2011 11:51 am
by jimmylegs

Stress does this !!

Posted: Wed Jan 19, 2011 1:48 pm
by Gordon
Epinephrine (also known as adrenaline) is a hormone and neurotransmitter.[1]

It increases heart rate, contracts blood vessels, dilates air passages and participates in the fight-or-flight response of the sympathetic nervous system.[2]

Chemically, epinephrine is a catecholamine, a monoamine produced only by the adrenal glands from the amino acids phenylalanine and tyrosine.

That may be why I personnaly feel crappy MS wise after a stressful situation