hairdryer

Years earlier, in the dry heat of a Portuguese late evening, it was a young Cristiano Ronaldo who was left in floods of tears by the famed Sir Alex Ferguson hairdryer.

Rather than losing his head and delivering the hairdryer, this time Ferguson was showing his bullish side.

In what it called "one of the worst examples", Which? found a hairdryer priced at £18.99 in a Boots Black Friday deal, claiming to be reduced from £49.99.

It’s like someone has left a hairdryer on, or a motorbike is doing laps of the clouds.

Larger trials of the device, dubbed a "space hairdryer" by researchers, are now planned to try to replicate the results in a wider group of patients.