A mental health condition is considered a disability if it has a long-term effect on your normal day-to-day activity. This is defined under the Equality Act 2010. Your condition is ‘long term’ if it lasts, or is likely to last, 12 months. ‘Normal day-to-day activity’ is defined as something you do regularly in a normal day. For example – using a computer, working set times or interacting with people.