Elderly people often have problems with the performance of the lung and heart problems. He made no health risks because of the performance of the protection system of the lungs is reduced when age increase.
Seniors often have problems with the performance of the lung and heart problems. He made a lot of health risks. The performance of the defense system of the lungs decreases as age increases.
The elderly usually have problems about the efficiency of the lungs and heart problems. He made a health risk. Due to the performance of the defense system of the lung will decrease when the age increase.