This results in a net movement of fluid in the direction of the swimmer. (newscientist.com)
Bolman observes that, since the breast has no fascia or muscle to aid in movement of fluids other than breast milk, congestion of the breasts is common during early lactation. (lactationmatters.org)
The resulting flow is particularly complex: in addition to movement of fluid over long distances, which is well understood and generates a magnetic field, there are also turbulent fluctuations, involving erratic, random motion over short distances. (sciencedaily.com)