Expat insurance customers may wish to maintain good levels of psychological wellbeing, as this has been said to be closely linked to physical fitness.
Chartered psychologist, author of Think Yourself Happy and founder of Mind Health Development Dr Rick Norris argued "there is no doubt" of this.
He noted stress has been related to "many physical diseases", including stomach problems, skin disorders, cardio-vascular illnesses and cancer.
Research has indicated this is because the negative emotion makes a person's immune system perform worse than it normally would, the expert stated.
This makes individuals who are stressed particularly prone to physical ailments, Dr Norris asserted.
Common signs of stress include failure to eat or eating too much, feeling a lack of control, feeling little energy and focus, forgetfulness, or headaches, with many more symptoms known, the US Department of Health and Human Services states.
It notes that long term stress can also result in depression and anxiety.
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