harâ¢binâ¢ger. 1. one that announces or foreshadows the approach of someone or something; forerunner; herald. 2. a person sent in advance of troops, a royal train, etc., to provide or secure lodgings and other accommodations. 3. to act as harbinger to; herald the coming of.
Though many people say that technology is useful and helps society, in reality, technology is unhealthy and can cause social and academic problems.
Technology is bad for our health because of the electromagnetic waves. For example, at Hallym Institute of Electrical and chemical studies, they did an experiment using two herds or rats. One of the herds was exposure to electronic waves, and others were not.