Stress has some pretty damaging side effects. People who experience a heavy workload and get little support from their boss are more likely to experience sleep problems that can harm their health later in life.

To find some great companies to work for where stress levels are well-managed, Business Insider teamed up with PayScale, a compensation software and data company, to find the 20 best businesses to work for in America.

From that list, we looked at the percentages of employees who reported low job stress. This was determined by the number of respondents at each company who answered “My job is relaxing” or “Not stressful” when asked about their job. Read a detailed breakdown of the methodology here.

We ranked the top 10, giving the tie breaker to the companies that performed better on the overall list of best employers. This year’s No. 1, Southern Co., moved up from the second spot with 28% of employees reporting low stress — a small improvement from last year.

Keep reading to see the 10 best companies to work for in America with low job stress:

10. Bristol-Myers Squibb



Headquarters: New York, New York

Experienced median pay: $111,000

Employees reporting low stress: 13%

Biopharmaceutical giant Bristol-Myers Squibb has a rich employee culture with strong gender diversity — 54% female and 46% male — across its 11 offices in seven states. The company manufactures drugs that treat cancer, HIV/AIDS, and cardiovascular diseases, among other ailments, and 82% of employees report that their job has high meaning, according to PayScale.