Should we be concerned about 5G affecting our health?

The 5G era is beginning with smartphone makers announcing and launching mobile devices ready for the new generation in communications. Huawei says it plans to supply about 500,000 5G base stations by the end of this year. But people are starting to worry about the technology's health risks. Should they? Professor Gai Keke from the School of Computer Science and Technology at the Beijing Institute of Technology says no.