Office plants have become more popular over the last 30 years, with research reinforcing the belief that they improve the atmosphere, reduce stress, and sharpen concentration.

CNN: Office foliage for feel good factor

When you're irritated by something, your stress hormones rise and your concentration levels decrease.

CNN: Fuzzy brain? Improve your attention span

Several years ago, Wrigley and The Princeton Review surveyed American and Canadian college students about their study habits and found that of the students who chew gum while studying for exams, 41% do so to combat stress while 23% do so to increase concentration.

WSJ: Wrigley, Other Gum Makers Seek to Stimulate Gum Sales

The main complaint is that Mayer is fighting an inexorable shift to telecommuting and remote working that is giving millions better work-life balance, increased productivity and concentration, and less commute time and stress.

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