Examples may include:

• Wearing inappropriate clothing for the weather

• Becoming unusually suspicious

• Withdrawing from hobbies or social activities

• Spending money impulsively

• Showing reduced interest in previously enjoyed activities

Family members often notice these changes before the individual does.

Other Symptoms That May Occur

As Alzheimer's progresses, additional symptoms may develop.

These can include:

• Difficulty finding the right words

• Misplacing objects and being unable to retrace steps

• Trouble understanding visual information

• Difficulty following conversations

• Poor judgment

• Increased confusion

• Changes in sleep patterns

• Anxiety or depression

Not everyone experiences symptoms in the same order or at the same pace.

Conditions That Can Mimic Alzheimer's Disease

Several medical conditions can cause symptoms similar to Alzheimer's but may be treatable.

Examples include:

• Vitamin B12 deficiency

• Thyroid disorders

• Depression

• Anxiety

• Medication side effects

• Sleep apnea

• Urinary tract infections (particularly in older adults)

• Dehydration

• Other forms of dementia

This is one reason why professional evaluation is so important.

Who Is at Higher Risk?

Although anyone can develop Alzheimer's disease, certain factors increase risk.

These include:

• Older age

• Family history

• Certain genetic factors

• Cardiovascular disease

• Diabetes

• High blood pressure

• Smoking

• Physical inactivity

• Obesity