You are considered to be disabled under the Equality Act 2010 if you have a physical, neurological developmental or mental impairment that has a ‘substantial’ and ‘long-term’ negative effect on your ability to do normal daily activities.
An impairment or condition is considered to be long-term if it has lasted for at least 12 months, is expected to last for at least 12 months, or is likely to last for the rest of your life.
For a student, ‘normal day to day activities’ might include taking notes, writing, researching, reading large amounts of text and moving between multiple locations.