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.
A significant percentage of the human body is water. So how much water is in the human body? The percentages vary depending on a personâs age, and the amount of fat that is stored on ones body. The total percentage of water that makes up the weight of a newborn baby can be as high as 75-78%. The percentage of water weight will gradually decrease throughout a personâs lifetime, but will drop the most in the first 10 years of life.