When you are exercising, your muscles need extra oxygen—some three times as much as resting muscles. This need means that your heart starts pumping faster, which makes for a quicker pulse. Meanwhile, your lungs are also taking in more air, hence the harder breathing.
Some beverages or food that contain no sweet taste or less sweet taste, it does not mean that they have negative test for glucose.
<em>Explanations:</em>
Sweetness is being feel, when it interact with taste bed ( tastes organ on tongue).
Sucrose is consider as a standard sweetener having rating 1.
While is almost sweetener but its rating is 0.7 only that's why some time we don't feel sweetness after using such a food that contain glucose.
<em>Conclusion:</em>
Actually, the metabolic component are breakdown into simpler carbohydrates like sugar, fructose that become source of energy in blood stream. These sugar like glucose are less sweet than sucrose. So we sometimes don't feel sweetness.