1 - Arteries of the heart blocked by plaque can reduce the flow of blood to the heart possibly resulting in heart attack or death.

2 - Hotter summers caused by climate change may not be as catastrophic for the Greenland ice sheet as previously feared and may actually slow down the flow of glaciers.

3 - The hydraulic cycle is the continual flow of water from the ocean to the atmosphere to the land and, after several days, back to the ocean again.

4 - Long-distance runners have a greater capacity to "dilate" their coronary arteries and thus markedly increase blood flow to their heart muscle.

5 - Sudden movements in exchange and interest rates can erode profit margins, strain your cash flow and shrink overall profits.