- Health concern
The human's immune system is very uncertain thing because there is a countless quantity of different dangerous viruses and bacteria. From ancient times plague and other infectious diseases have been killing people without leaving them any chance to survive. All these diseases are even worse than wars by the quantity of deaths. It is very noble activity to protect health and help people recover.
We think that it is a real luck to have a strong health. Our way of life doesn't increa...
The human's immune system is very uncertain thing because there is a countless quantity...