Paranoia unfounded or excessive fears about others. Such fears may be refered to as ‘paranoid thoughts’ Fears about other people seem to have reached new heights – whether they be terrorists, binge-drinking youths, child abusers, or criminals. And recent scientific research has revealed that suspiciousness is much more common than had previously been believed. So if you’re worried about other people, you’re certainly not alone: around a third of the population regularly has suspicious or paranoid thoughts. In fact, paranoia may be almost as common as depression or anxiety. And just like anxiety and depression there is a spectrum of severity of paranoia in the general population. Many of us have paranoid thoughts from time to time.