July 18, 2017

Viruses can be very dangerous for humans

Healthyandhealth Viruses can be very dangerous for humans [healthy and health]Once a virus infects a cell, it tries to take over its host completely, much as […]
April 12, 2017

Position manner,manner for everything

healthyandhealth What is good position manner? Posture is the position in which you hold your body upright against gravity while standing, sitting or lying down. Good […]