Doctor teaches how to distinguish false dementia, seeking professional assessment reduces risk

Forgetfulness is not always a sign of dementia, according to Dr. Hsiao Che-hui, a neurologist at Tainan Municipal An-Nan Hospital. Many patients express anxiety about memory loss, but the cause can often be emotional distress or normal aging, rather than a degenerative brain condition. Hsiao emphasizes that seeking professional medical assessment is key to accurate diagnosis and appropriate treatment.

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Forgetfulness does not necessarily mean dementia; early professional medical evaluation can clarify whether it is normal aging, false dementia caused by emotional factors, or true dementia.

He explains that "false dementia," often linked to depression or anxiety, involves temporary cognitive impairment. When individuals experience high levels of anxiety, their attention can be consumed by negative thoughts, causing a temporary shutdown in the short-term memory processing areas. This can create the illusion of memory loss. A key indicator of false dementia is the patient's high awareness and anxiety about their memory issues, often leading them to seek medical help proactively. Crucially, false dementia is reversible; cognitive functions can fully recover with medication and psychological counseling.

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False dementia is not a true structural change in the brain, but rather temporary cognitive impairment caused by emotional problems like depression or anxiety.

However, Hsiao warns that prolonged anxiety or depression, if left untreated, could increase the risk of developing true dementia later on. He also clarifies the concept of "normal aging." As people age, nerve conduction naturally slows down, similar to a computer slowing with age, but the data remains intact. Age-related memory loss typically involves forgetting some details, but individuals can usually recall them with reminders or calm reflection. Importantly, judgment, spatial awareness, and self-care abilities remain intact in normal aging, with only a slowing of reaction times, not a complete loss of function.

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The biggest difference between false dementia and true dementia is that patients usually have 'high disease awareness and anxiety.' They suffer from forgetfulness and actively seek medical attention, and their memory fluctuates with their mood.

Distinguishing between true and false dementia is the first step in protecting brain health. Dr. Hsiao urges anyone experiencing significant memory decline, or their family members, to seek professional evaluation promptly. This will help determine if the issue is a brain illness, normal aging, or mental fatigue, allowing for timely intervention during the critical treatment window.

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With aging, nerve conduction speed naturally decreases, like a computer slowing down, but the data in the hard drive has not disappeared. Aging usually involves 'partial forgetting,' which can usually be recalled after being reminded or thinking calmly.