When we add sugar to tea or coffee we might not really reflect on how much sugar we scoop up. What is one teaspoon for you may actually be two ârealâ teaspoons, which would mean you are actually consuming more calories than you thought. A normal teaspoon of sugar vs a heaped teaspoon of sugar.
they are inversely proportional (increasing area decreases velocity) therefore in large vessels like the vena cava, blood has a low velocity blood also has a low velocity in the capillary beds, because of the increased cross-sectional area produced by many capillaries.
1 The same principle applies to our blood flow. 2  Cholesterol and plaque build-up at the damaged sites in the arteries and cause the blood flow to become limited or even cut off altogether. 3  As this happens, pressure is increased on the rest of the system, forcing the heart to work harder to deliver blood to your body.