A kidney has no significant impact on the life expectancy of a human being. There are some people who are born with isolated kidneys or undergo a kidney transplant as a donor, and the life expectancy of these people will not be affected, and they can live up to the average survival age of 73 years. But after all, there is only one kidney, so you have to pay some attention to your life and diet to avoid kidney damage. 1, pay attention to regular work and rest, regular diet, low-salt, low-fat, high-quality protein diet as a principle; 2, if there is a cold, fever and other sick state, pay attention to avoid the application of nephrotoxic drugs, you can choose cephalosporins, penicillins, the impact of the kidneys is relatively small, but also pay attention to the appropriate exercise exercise, the kidneys are a certain degree of help; 3, the need for regular rechecking of renal ultrasound, renal function, Urine routine and other related indicators to prevent early kidney disease.