Q. Where do phobias come from?
A.
Around 10 per cent of the population suffer from phobias. Some may be triggered by a traumatic event while others are linked to physical problems. Studies suggest that simple phobias are partly genetic while others may be due to cultural history. For example, a fear of spiders may be passed down from the Middle Ages when spiders were associated with the plague, as victims' deserted homes became shrouded in cobwebs.