Since swimming uses all five senses, it leads to activity in the brain which then creates growth. Cross-patterning movements such as swimming activate both cerebral hemispheres and all four lobes of the brain simultaneously, which can result in heightened cognition and increased ease of learning (“Swim Kids”). Immersing the body in water to the level of the heart increases blood flow through the brain's cerebral arteries, thus improving vascular health, blood circulation, and cognitive function. Nine healthy males participated in a study where they were asked to stand in a tank while remaining as still as possible. Subjects were given a 10-minute rest period before "three submersible water pumps filled the tank at a constant rate with euthermic
