Researchers from NASA and are using human stem cells to measure the effects of deep space radiation.
8 March 2017 9:22 AM GMT
People could also reduce their risk of brain cancer by carrying their phones in a bag or purse - not in their pockets.
19 Dec 2017 7:05 AM GMT
Non-ionising radiation from magnetic fields is produced when electric devices are in use and electricity is flowing.
14 Dec 2017 1:10 PM GMT