From the giant "bricks" of the 1980s to the more slimmed down and sophisticated smartphones we have now, mobile telephony has always generated health scares, and 5G is no different.
The focus of these concerns has always been the same electromagnetic waves that devices generate and receive in order to facilitate calls, SMS text messages and, latterly, connect to the internet. Over time, however, the finger of blame has pointed at different parts of the system. Whereas it was once the handsets themselves that were accused of being the source of various ailments most commonly cancer now it's the radio waves themselves that are thought to be the villain of the piece.
The emergence of 5G over the past few years, with devices capable of using this technology now hitting the shelves, has led to a resurgence of worries.
There is an unfortunate coincidence that China is one of the biggest suppliers of 5G hardware and also the original epicentre of the coronavirus - but the 'coincidence' is the only link between the two. Despite this, a number of conspiracy theories have spread online and we are already seeing considerable damage.