Can frequently using the left hand stimulate right brain development?

Frequently using the left hand usually does not develop the right brain. A detailed explanation is as follows:

Although the left and right hemispheres of the brain indeed have different functional characteristics, these differences are not determined by which hand is used. Most people's brains naturally engage both hemispheres to accomplish various tasks in daily life, regardless of which hand they use. Therefore, frequently using the non-dominant hand alone cannot specifically develop certain areas of the brain or enhance intelligence. However, hand-related training and exercises can improve coordination and flexibility of the brain, thereby enhancing cognitive and motor abilities. Such training may include a variety of activities, such as learning new skills, engaging in physical exercise, and participating in intellectual games. If one aims to improve intelligence and brain function, these types of comprehensive activities should be pursued, rather than relying solely on using a particular hand.

In daily life, conditions such as reduced intelligence or memory decline may be caused by medical disorders, including stroke, depression, schizophrenia, etc. When such symptoms occur, it is important to seek timely medical evaluation at a hospital.