Forget the age-old remedies of yoga, meditation or popping pills. Relieving chronic stress could soon be as simple as having an injection, according to scientists.

Academics say they are close to developing the first vaccine for stress – a single jab that would help us relax without slowing down.

After 30 years of research into cures for stress, Dr Robert Sapolsky, professor of neuroscience at Stanford University in California, believes it is possible to alter brain chemistry to create a state of ‘focused calm’.

Professor Sapolsky claims he is on the path to a genetically engineered formula that would remove the need for relaxation therapies or prescription drugs.

Chronic stress, as opposed to everyday worries, is linked to illnesses ranging from diabetes to …