What can contribute to losing focus on work according to one of the statements?

Distractions from coworkers can significantly contribute to losing focus on work because the presence of noise, interruptions, or casual conversations can divert attention away from tasks. In a typical work environment, coworkers might engage in discussions that are unrelated to the work at hand, which can disrupt concentration and hinder productivity. This could range from spontaneous chats to more structured meetings that are excessively frequent.

While factors like a lack of interesting tasks or personal phone calls can also lead to distraction, they do not inherently involve the immediate environment or collective dynamics of the workplace, which can be more directly impactful on one's ability to maintain focus. Heavy workloads might lead to stress rather than distraction, making it a different type of challenge that might not directly impede focus in the same way that coworker interactions do.