Some of the signs of early dementia are also seen with other conditions. So, if you see a provider about your symptoms, they will likely work to rule out these conditions first:

1. This mental health condition causes persistently low mood due to chemical imbalances in the brain. Like dementia, depression can lead to problems thinking, decreased attention, loss of interest in hobbies or activities, and withdrawal.
2. Vitamin B12. This vitamin deficiency is linked to worsening memory and cognition. Since vitamin B12 levels naturally decrease as you age, this is more common in older adults.
3. This condition leads to lower levels of thyroid hormone in the body, which can cause brain fog or “forgetfulness”.
4. Normal Pressure Hydrocephalus. This disorder develops when too much fluid builds up in the brain and can cause difficulty thinking and walking.
5. Medication Side Effects. Certain medications, like anticholinergics, can cause symptoms that mimic Alzheimer’s dementia. These drugs block an important chemical in the body that is involved in thinking and memory. 
6. Electrolyte Abnormalities. These occur when someone has too high or too low levels of essential minerals. This can happen with things like low sodium and high calciums in the blood. 
7. Certain infections can lead to temporary changes in memory and thinking, especially in older adults. Chemicals that fight off infection in the body can sometimes affect the brain. Urinary Tract Infections (UTIs) are a common cause of this in older adults.

Liver or Kidney Failure. These conditions can lead to high levels of waste products in the blood, which cause delirium. This can look like dementia in an older person.