Flexibility is the name of the game in many startup operations, but leadership experts have previously told SmartCompany that even the most versatile workplaces can see employees at risk of burnout if they are working lengthy hours.

“I think it’s around the question of what kind of culture we want to provide for our startups and at what cost, both [in terms of] what personal cost to the individual, and any costs to the startup,” head of workplace relations thinktank Reventure, Lindsay McMillan, told SmartCompany earlier this year.