Why... Options

[Harp]

Do I get really light-headed after I take baths?
My mom suggested it was because the water was too hot, but I lowered the temp. and I still felt really dizzy when I got out.

[Reidar]

The influx of blood rushing from your head as you stand up after a period of lying down in a relaxed state.

[fire]

The influx of blood rushing from your head as you stand up after a period of lying down in a relaxed state.

I am most certainly sure you mean outflow, when you stand up your body doesn't have enough time to vasoconstrict the lower arterioles and veins in order to maintain a more even blood pressure as the blood rushes down due to a thing called GRAVITY!!!!!.

Yeah, non uni season.

[Reidar]

I am most certainly sure you mean outflow, when you stand up your body doesn't have enough time to vasoconstrict the lower arterioles and veins in order to maintain a more even blood pressure as the blood rushes down due to a thing called GRAVITY!!!!!.

Yeah, non uni season.

Haha, no. Your accentuation of the word "influx" does not cohere with the attempted contrast to "outflow" because an "influx" can be in any which direction. If blood is rushing out from the head, it obviously must be effusing into something. I'm usually the one to bring up semantics so I'm sympathetic to others who feel that a singularity is enough to throw off the sentence, but only when the parsing of words isn't completely wrong. Also, vasoconstriction does not maintain a "more even blood pressure" because the act of constraining the pressure gradient is inciting a disparity from the region that is insulated from said CBF; the very definition of "constriction" necessitates unevenness. That's how hemodilation acts diametrically to balance out, and vice versa, but only with one and the other doing so in synchronization.

This all becomes very basic when you've studied NO2 products for so long.