THE LAPTOP GRIMACE

WHAT: Peering at computers causes a puckered frown.

There are also fears that blue light emitted by devices might accelerate skin ageing. EXPERT: Frown lines are caused by frequent contraction of two brow muscles.

Evidence shows blue light can damage DNA in skin cells via free radicals — unstable molecules that steal electrons, harming cells. SOLUTION: Forehead & Between The Eyes patches (£17.50 for 144, frownies.co.uk) relax muscles.

Soap and Glory Sunshield Superfluid SPF 50+ (£15, boots.com) includes Liposhield HEV Melanin — which is said to protect skin from blue light.