Have you ever encountered something similar in your life, for example, a name, a phrase, a word, an event that you remembered clearly a moment before suddenly disappears from your head, and often the words that were on your lips cannot be remembered. These are all symptoms of intermittent amnesia, and the fact that all people with this condition have it initially does not matter. What are the causes that affect human memory triggering intermittent amnesia? First of all, when a person’s thyroid gland is dysfunctional, human memory is also affected. Although the thyroid gland does not act on the brain, it is indeed one of the culprits of memory loss. People with hyper- or hypothyroidism usually have a mediocre memory and difficulty concentrating, which is very common in many women. Lack of sleep can also give people intermittent amnesia. When we sleep, certain parts of the brain are also at rest, while deeper parts associated with memory and emotion are more active. People who do not get enough sleep and sleep irregularly do not only suffer from memory loss, but also fatigue, lack of concentration and slow reaction time. Sudden stress can also affect memory. There is much evidence that worry, anxiety, and bipolar affect the memory center. Severe forgetfulness often maps to severe mood swings. Prolonged exposure to stress raises cortisol levels in the brain, which leads to a reduction in brain cell dendrites (the bridges that link brain cells to each other), with the result that the ability to store and retrieve memories is compromised. Although intermittent amnesia seems to cause a lot of trouble in life, the good news is that by changing the bad habits that cause intermittent amnesia, the disorder will heal itself without a cure.