Exercising at a company gym has been found to lead to increased productivity at work. The Wall Street Journal's Rachel Bachman with tips on working out in front of other co-workers and even your boss.

What gyms are doing to attract and keep new members. At least one approach will be appealing to entrepreneurs; and how to launch your start-up when you have very little money.

What to know if you'd like to open your own warehouse gym; and the trend to watch if you're desperate to hold on to your top employees.