Adam's apple (also known as arterial ring) is a structure composed of cartilage, mucosa and muscle, usually located in the central depression of the neck. In some women, this structure may be more prominent than others, and it is called "long Adam's apple" for the following reasons:

1. Physiological structure: The reason for the long Adam's apple may be the difference in physiological structure between individuals, because everyone's physiological structure and tissue distribution are different.

2. Age: In some women, with the increase of age, muscle and cartilage tissue may decrease, which makes the Adam's apple more obvious.

3. High-intensity training: The obvious degree of Adam's apple may also be affected by high-intensity activities, especially the training of vocal cords or respiratory muscles, such as singing and running.

4. Hormone level: The content of male hormones in women may lead to more obvious Adam's apple, which may be one of the reasons for the long Adam's apple in some women. But it is worth noting that this situation is relatively rare.

It is worth noting that the long Adam's apple itself will not have any adverse effects on people's health, and it does not need special treatment or surgery, as long as we pay proper attention to lifestyle and maintain healthy eating habits.