You are the team manager of a work team in the workplace. You notice that one of your team members often appears tired at work and their appearance and dress has deteriorated. In addition, you have noticed that they have become more irritable and unable to concentrate on tasks. This has led to a decline in their overall performance including increase in making mistakes, failing to meet deadlines and rarely participates in team meetings.

Based on the above scenario, describe what this behaviour may indicate and how they would approach the team member based on their assessment.