The innovators: the pulsating wristband that sets your daily rhythm

No need for coffee for a post-lunch lift, the Doppel can enliven or relax users with a gentle change in pulse, its creators claim

As the post-lunch slump sets in, many office workers opt for a coffee or chocolate to keep their eyes open, risking sleeplessness or a sugar crash. It is at times like this, its inventors believe, that a new wearable device can stimulate users via a tiny pulse that will heighten their mood or bring it down if they want to relax.

At first glance, the Doppel resembles a traditional watch, albeit one with the clock face on backwards and worn under the wrist. Behind the stainless steel base is not a timepiece, however, but a vibrating motor that gives off a range of mechanical pulses aimed at improving how the user feels.