GRAY MATTER
True.
Gray matter is a type of brain tissue that is rich in nerve cell bodies, dendrites, and synapses. It is involved in various functions such as sensation, movement, and cognition. Thinning of gray matter refers to a reduction in the volume or thickness of gray matter in the brain. This process, known as brain atrophy, can occur for various reasons, including normal aging, disease, or injury.
Studies have shown that thinning of gray matter occurs in different brain areas at different ages in a person's life. For example, research has found that thinning of gray matter typically starts in the prefrontal cortex (a brain region involved in decision making and executive function) in the mid-20s and progresses to other areas such as the temporal and parietal lobes (brain regions involved in perception and spatial awareness) in the late 20s and early 30s. Other brain areas may show thinning later in life, such as the hippocampus (a brain region involved in memory and spatial navigation) in the 40s and 50s.
To conclude, thinning of gray matter is a normal part of aging, but it can also be affected by various factors such as genetics, lifestyle, and health conditions.
