Nowadays, the overall life span of the population and the percentage of ageing people has increased in recent years. The main causes are the availability of health care centers, the good nutritional state of the societies and groundbreaking in the cure of cancer diseases. I will develop these issues in the upcoming following paragraphs.
First of all, outstanding medical research in the treatment of the most common lethal diseases such as breast cancer in females and prostate cancer in males besides significant availability of healthcare facilities improved the lifespan of human beings. For example, advancements in chemotherapeutic medicines in the cure of testicular malignancy increased the 5-year survival of patients in the USA by approximately 15 to 20%. Therefore, the average age of the population is increasing due to medical advancements in the treatment of cancers.
On the other hand, eating a healthier diet and receiving more vital nutrients helps people to have better body immunity and resist health problems more effectively. Vitamins and proteins are crucial in the body’s defence mechanism against many bacterial and viral organisms which are responsible for infectious diseases. For instance, a survey in the USA illustrated that people whose vitamin D3 intake was more than 350-400 IU per day had a 50% lower rate of heart stroke. subsequently, increasing the body’s immunity prolongs the life expectancy of the population.
In conclusion, the individual’s longevity has raised in many countries and is due to more decent medical care and their nutritional state of them.