Psychologist reveals why we rush for Black Friday bargains

An expert says online retailers are all too aware of how our brains work and how to make us want to buy (Tim Goode/PA)

Do your homework before rushing to buy what looks like a bargain during Black Friday, a consumer psychologist has warned shoppers.

Online retailers are braced for a surge in site visitor numbers for the annual sale event while bricks and mortar stores remain closed during lockdown.