Mental capacity refers to a person’s ability to make decisions for themselves. It means having the ability to understand, retain and weigh up information relevant to a decision and then communicate that decision. Mental capacity is essential for everyday choices, from what to eat or wear to more complex decisions about medical treatment or finances.

How Mental Capacity Is Assessed

Assessment of mental capacity focuses on whether a person can understand the information relevant to the decision, remember it long enough to make the choice, weigh the pros and cons, and communicate their decision in any form. Capacity can vary depending on the complexity of the decision and may fluctuate over time.

Legal Framework

In the UK, the Mental Capacity Act 2005 provides guidance on how to assess capacity and make decisions in the best interests of those who lack it. The act emphasises that everyone is presumed to have capacity unless proven otherwise and that people should be supported to make decisions whenever possible.

When Mental Capacity Matters

Mental capacity assessments are important in situations involving consent to medical treatment, managing finances, living arrangements, and other personal matters. If someone lacks capacity, decisions must be made in their best interests with respect for their rights and dignity.

Summary

Mental capacity is the ability to make informed decisions about one’s life. It is assessed based on understanding, retention, weighing information and communication, and protected by law to ensure fair and respectful treatment.