Mental incapacity refers to a condition where an individual is unable to make informed decisions due to cognitive impairments. This can result from various factors, including mental illnesses, developmental disorders, or brain injuries. Individuals with mental incapacity may struggle with understanding information, reasoning, or communicating their choices effectively. Legal systems often recognize mental incapacity, which can affect a person's ability to enter contracts or make medical decisions. In such cases, a guardian or representative may be appointed to act in the best interests of the individual. This ensures that their rights and well-being are protected while addressing their specific needs.