Physical activity is a good way to boost one's physical and mental health — but not if it's your job، a study claims، as the Technical Times said. Exercise has long been the primary solution for acquiring a healthier lifestyle. Not getting enough of it is linked to a number of health problems، including obesity، heart disease، diabetes، and many other illnesses. A new research published in the British Journal of Sports Medicine argues that not all forms of physical activity yield health benefits. In fact، some strenuous work is associated with a risk of early death. Occupational health researcher Pieter Coenen along with his colleagues looked at 17 previous studies that discussed the effects of job-related physical activity. Collectively، the studies provide information on over 193،000 men with varying levels of physically exhausting jobs. They conclude that those with the hardest jobs had an 18 percent risk of dying early compared with people who have less physically demanding work. The results are conflicting with popular belief. After all، countless studies have been telling us that all forms of exercise can only be good for one's health، right? But Coenen says studies claiming as such only focus on leisure-based physical activity.