A new Gallup Study to mark the Labor Day holiday weekend finds that American workers now consider themselves more stressed, less paid, less healthy and less appreciated than ever before.

Conducted in conjunction with the Families and Work Institute over the month of May, the study also found only about a third of all workers now describe themselves as happy on the job, and that at least half of all employees feel overworked or overwhelmed more than half the time.

"There's such a demand for instant results, it's a relentless pace of work," FWI president Ellen Galinsky told The New York Daily News.

The study also found that many of the advancements stemming from the rise of technology have served as a double-edged sword. While workers now have greater flexibility, such as being able to work from home and according to their own schedules, research finds it's also added to the typical workload. A quarter of all respondents revealed they now work 50 or more hours per week, and 22 percent insisted they now carry a six or seven day work week.

Even with all the increased labor, the U.S. Labor Department finds that all productivity has essentially remained flat over the last six years.

As for wages, the Economic Policy Institute finds that employee earnings have been stagnant for the past 35 years, despite a robust 64 percent increase in productivity over that same time frame. Over a two-year period starting in 2013, hourly wages dropped at almost every level, most substantially among those with college or advanced degrees.

A recent Stanford and Harvard poll also finds that job instability can lead to greater health-related issues. Overall job insecurity is reported to increase the odds of one admitting to poor health by roughly 50 percent, with stressful work environments alone raising the odds of one being medically diagnosed with an illness by some 35 percent.

With some experts deeming all the increased workplace stress "as dangerous as second hand smoke," researchers also found longer hours can increase your risk of mortality by 20 percent.

Union membership is also on a steep decline, with the overall number of unionized American workers decreasing from 20 to 11 percent over roughly the last three decades.

Former Secretary of Labor Robert Reich also predicts, over the next five years, nearly half of all workers will be either independent contractors, temps, freelancers or self-employed, meaning that they will be employed without benefits, and paid hourly and at uncertain periods, depending on service demands.