Phyllis King, associate director of the Center for Ergonomics at the University of Wisconsin-Milwaukee College of Health Sciences, said in a recent interview, “Studies have shown increased productivity from using dual monitors. A byproduct of that is more comfort, a better workload and a higher level of satisfaction and feeling of support in the workplace.” While laptops and tablets are used on the go, many workers use them as replacements for a traditional desk station, which isn’t necessarily good for workers. “If you are working on a laptop for any length of time, I highly suggest a more dedicated workstation,” Dr. King says. “You should get an external keyboard, an external mouse and put the laptop on a stand so it raises the monitor to eye level.” In addition, a large dual-screen setup can provide the optimum level of ergonomics. (Source: https://insights.samsung.com/2015/08/20/second-screens-the-benefits-of-multiple-monitors-case-study/)