Just looking at a jar of coffee can perk you up!

It is certainly a solution for anyone worried their morning latte-to-go is becoming an expensive habit.

New research has proved that simply just looking at a jar of coffee could apparently give you a pick me up – without even having to take a sip.

Passing a coffee shop or simply imagining a steaming hot mug is thought to boost our energy levels, make thinking sharper and even raise heart rates, a study has found.

Researchers at the University of Toronto, asked more than 400 participants to read an article about drinking coffee or tea. They then measured participants’ alertness – or ‘arousal’ – by asking them to record to what extent they felt ‘excited’, ‘active’, ‘worn out’ or ‘drowsy’.

Those with coffee on their mind were more likely to be alert and performed better in tests measuring focused thinking.