Breathe: The hormone noradrenaline is released during stressful situations. It makes people sweat, breathe heavily and increases our heart rate, according to experts at Harvard Medical School.
Stand up: Standing up straight allows lungs to fill up with air, improving the body's oxygen supply and significantly reducing the production of the stress hormone cortisol, Dr Sheela Raja, clinical psychologist and assistant professor at The University of Illinois at Chicago, told Naperville Magazine.
Avoid coffee: This caffeinated drink can cause insomnia, nervousness and a faster heart rate – which can worsen the feelings of stress, Dr Mark Hyman wrote.
Get active: Exercise releases 'feel good' hormones called endorphins which can help counterbalance anxiety during stressful situations, according to the Anxiety and Depression Association of America.
People completed questionnaires about their level of job strain at age 45 then, at age 50, a questionnaire commonly used to indicate signs of common mental illness.
Researchers also accounted for other stress-inducing factors including divorce, financial problems, housing instability, and bereavement or illness.
Results were then adjusted to rule out the effects of factors such as people's personalities, their IQ, level of education, previous mental health problems.
Double the risk if your job is 'high strain'
When compared with a control group, those with high job demands are 70 percent more likely, and people with low job control are 89 percent more likely.
People whose job is classed as 'high strain' have more than double the risk – a 122 percent increase – of developing mental illness in their middle age.
The final results show people with higher job demands, lower job control and higher job strain are more likely to develop mental illness by age 50, regardless of their gender or type of job.
Mental illness the leading cause of time off work
Professor Harvey added: 'Mental illness is the leading cause of sickness absence and long-term work incapacity in Australia, equating to billion lost to Australian businesses each year.
'Our modelling used detailed data collected over 50 years to examine the various ways in which particular work conditions may impact an employee's mental health.
'These findings serve as a wake-up call for the role workplace initiatives should play in our efforts to curb the rising costs of mental disorders.'
Past research shows stress linked to physical illness
Previous research has also shown that high levels of stress at work can increase the risk of heart attacks, and make people more likely to eat unhealthily and sleep and exercise less.
Stress can make people physically ill because it can stimulate white blood cells to react in the same way that illness does and cause the body to react as though it is fighting an infection when it is not.
Pictures: These Therapeutic Podcasts Will Help You De-Stress
These Therapeutic Podcasts Will Help You De-Stress .