What does a defendant give up by choosing to testify in their own defense?

When a defendant chooses to testify in their own defense, they waive their right to remain silent, which is a protection guaranteed by the Fifth Amendment. This amendment provides that individuals cannot be compelled to be witnesses against themselves in a criminal case. By taking the stand, the defendant effectively opts into the trial process and must answer questions posed by both the prosecution and their own attorney. This decision also opens the door to cross-examination, where the prosecution can challenge the defendant's credibility and the content of their testimony. Thus, testifying means that the defendant relinquishes the Fifth Amendment protection that would allow them to avoid self-incrimination and remain silent during the proceedings.