In particular, prolonged standing can raise blood pressure as the body boosts circulation to the lower limbs by constricting blood vessels and increasing the pumping power of the heart.

Without intervention, a constricted baby may fatally rupture the uterus, or cause tears that catastrophically haemorrhage.

In plays such as “The Whale,” “Pocatello” and “A Permanent Image,” he closely examines the sociological landscape, the way economics and culture constrict and magnify, imprison and potentially liberate this thing we call the self.

Ice water may constrict blood vessels and cause cramping.

They would close their eyes and move their ears and whiskers forward when feeling friendly, or constrict their pupils while flattening their ears and flicking their tongues when feeling aggressive.