To change the filter on this type of refrigerator, gently slide the unit out, unplug the unit from power, turn off the water valve, remove and replace the water filter, turn water valve back on, check for leaks, plug refrigerator back into the power outlet, slide unit back in place, and you are done.
Although very simple, balance exercises can greatly strengthen your center of gravity. Any exercise that is done on one leg can be considered a balance exercise. Standing on one leg will improve your body's ability to center its mass over one leg.
When a healthy individual stands up, gravity causes about 10-15% of his or her blood to settle in the abdomen, legs, and arms. This pooling of blood means that less blood reaches the brain, the result of which can be a feeling of lightheadedness, seeing stars, darkening of vision, or even fainting.