There is evidence that thyroid issues can disrupt mood and energy levels, which can adversely affect individuals' overall quality of life. Thyroid malfunction usually presents the same symptoms as some psychological conditions, such as anxiety, depression, and bipolar. When the thyroid is overactive or underactive, it causes imbalances in dopamine, serotonin, norepinephrine, and other necessary mood-regulating chemicals. Hyperthyroidism can lead to irritability, restlessness, panic attacks, anxiety, and signs of mania, while hypothyroidism results in fatigue, lethargy, depression, weight gain, and impaired cognitive functioning. As a result, thyroid malfunction has been frequently misdiagnosed as a psychological disorder, and further tests should be done to prevent it.