Episodes of post-stroke are also associated with weather changes, rapid weather shifts, humid and muggy conditions, or before and after rain and cold weather. 1. Central paresis Central paresis, also known as upper motor neuron paresis, or spastic paresis, hard paresis. It arises due to damage to the pyramidal cells in the motor area of the cerebral cortex and the nerve fibers that emanate from them – the pyramidal tract. Due to the damage of upper motor neurons, the inhibition and regulation of lower motor neurons are lost, resulting in the “release” of the reflexes of the spinal cord and the weakening or disappearance of random movements, which are clinically manifested as increased muscle tone, hyperactive tendon reflexes, pathological reflexes, and spastic paralysis. Numbness The affected limb, especially the end of the limb, such as the fingers or toes, or the skin of the cheek on the hemiplegic side, has an ant-crawling sensation, or a pins and needles sensation, or shows a dull response to stimulation. Numbness is often related to weather changes. The numbness is especially noticeable when the weather changes rapidly, when it is humid and hot, or when it rains before or after, or when it is cold. 3.Peripheral palsy Peripheral palsy, also known as lower motor neuron palsy, or flaccid palsy, soft palsy. It is a paralysis caused by damage to the anterior horn cells of the spinal cord and the motor nucleus of the brainstem, as well as the nerve fibers that emanate from them – the anterior root of the spinal cord, the spinal nerve and the cranial nerve. As a result of damage to the lower motor neurons, the muscles they innervate are not excited by the proper impulses, which clinically manifests as reduced muscle tone, weakened or absent reflexes, and muscle atrophy, but no pathological reflexes. 4, crooked mouth and eyes The facial muscles below one side of the eye bags are paralyzed. It is manifested as shallowing of the nasolabial folds, drooping of the corners of the mouth, and exposure of the teeth. When drumming cheeks and whistling, the corners of the mouth are crooked to the healthy side and drooling, which is more obvious when speaking.