Proactive interference is a memory disorder this occurs when the old memories of a person restrain the capacity of the brain to retain the new memories. Thus no new information can be retain in the brain. This may happen when the memories are similar. For example, finding difficulty in remembering the new and old phone numbers.
The given situation is an example of proactive interference as the people may find difficult to learn and remember the recently learned materials as the similar information was also learned in the past.
A organ donation help people in his community becasue if there is a kid or even a adult he can help them by give them a new hole life, like blood of other part of the body