there is huge potential in using outer technology for healing the inner layers, but the way this is done today is still on a kindergarten level.
A mother of a friend uses amethysts to reduce electronic radiations near pcs, tvs etc.
There are two shiva lingas, one made from Jaggi Vasudev and one from Gurunath that may do more good than those crystals, but UK and India are are little bit too far from each other =)