Heart, liver, or kidney disease. Sometimes swelling can indicate a problem such as heart, liver, or kidney disease. Ankles that swell in the evening could be a sign of retaining salt and water because of right-sided heart failure. Kidney disease can also cause foot and ankle swelling.
The average human body is estimated to be about 60 to 70 percent water. The percentage may be as high as 75% in infants, decreasing to 57-60% in adults. This does not include water that is part of hydrated chemical compounds in the body, which can only be removed chemically or by heat drying.
Body Water Percentage. Since water is the main components of our body, how much percentage of our weight that body water takes up. Actually, this percentage varies among babies, men and women. Body Water Percentage. According to Doctor Jeffrey Utz pediatrics, Neuroscience, Allegheny University, people do not have the same percentage of water in their bodies.