Blood flow: Blood pressure goes up, increased blood flow to muscles.
Answered 9/13/2013
4.9k views
Change in pressures.: The veins in the face just as the veins in the rest of the body change in size depending on changes in position as well as changes in levels of hydration and changes in pressure in the chest and abdominal cavity. In the face, the veins decrease with standing and increase with lying down. Straining (when angry) can increase the pressure in the chest which can increase the size of the veins.
Answered 12/9/2013
4.9k views
6 doctors weighed in across 2 answers
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