What happins in you body when you stand up from sitting/sqwating and get light h!
Question:
What happins in you body when you stand up from sitting/sqwating and get light headed/dizzy/temporary......
lose of eyesight.....usually its because of low blood pressure.......but wat exactly happins inside our bodies when this happins???
Answers:
What happens is that you have a drop in your orthostatic pressure.
Your body maintains a constant pressure in most instances. However, a rapid change in position, especially sitting/squatting/laying to standing may catch your body's regulator system unprepared. You get dizzy because your brain doesn't get enough oxygenated blood. You may experience dizziness, lightheadedness, tunnel vision, loss of color preception, and ultimately fainting.
It's happens more often when our body is in a compromised or weakened state, such as from recent illness or blood loss.
A great explanation of orthostatic pressures can be found here:
http://en.wikipedia.org/wiki/orthostatic...
Hope that helps!