Occasional uncertainty about the day of the week isn't necessarily unusual.

But persistent confusion about dates, seasons, locations, or the sequence of events can be more significant.

Someone may repeatedly ask what day it is.

They may believe an event scheduled for next week already happened.

They might become confused about where they are or why they are there.

Some people may also lose track of time and have difficulty understanding whether something happened recently or many years ago.

These changes can occur because the brain is having increasing difficulty organizing and interpreting information.

Again, one isolated episode does not necessarily indicate dementia.

The important factor is persistence and progression.

6. Problems With Planning and Problem-Solving

Everyday life requires constant planning.

We calculate expenses, follow recipes, organize appointments, pay bills, manage medications, and make decisions.

Early cognitive changes may affect these abilities.

A person who previously managed finances confidently might begin making unusual mistakes.

They may struggle to balance a checkbook, understand a bill, follow a familiar budget, or keep track of multiple payments.

They might also have difficulty solving simple problems that would previously have been straightforward.

For example, they may become unusually overwhelmed when something unexpected happens and struggle to determine what to do next.

This type of change can sometimes be more noticeable to family members than to the person experiencing it.

7. Misplacing Things and Being Unable to Retrace Steps

Everyone loses their phone or forgets where they put their glasses.

Misplacing objects occasionally is normal.

A potential warning sign is when someone repeatedly puts everyday objects in unusual places and cannot retrace their steps to find them.

For example, they may put keys inside the refrigerator or leave important documents in unexpected locations.

More concerning still is when they become convinced that someone has stolen the missing item.

In some cases, a person with cognitive impairment may genuinely believe another person took their belongings because they cannot remember where they placed them.

This can create tension within families.

It is important to respond with patience rather than immediately arguing about whether the item was stolen.

8. Poor Judgment or Unusual Decision-Making

Changes in judgment can sometimes appear before severe memory loss becomes obvious.

A person who was previously careful with money might suddenly make unusually risky purchases.

They may give money to suspicious callers or become vulnerable to scams they would previously have recognized.

They might dress inappropriately for the weather or make decisions that seem completely out of character.

These changes can be particularly important when they represent a clear departure from the person's longstanding personality and habits.

However, poor judgment can also result from many other factors, including mental-health conditions, medications, substance use, or stressful circumstances.

A healthcare professional can help determine whether the change may be related to cognitive impairment.

9. Withdrawal From Social Activities

Changes in social behavior can be easy to overlook.

Someone may gradually stop attending gatherings they once enjoyed.

They may avoid conversations because following them has become difficult.

They might stop participating in hobbies because they are having trouble remembering the rules or completing the activity.

Sometimes withdrawal is not caused by a loss of interest at all.

The person may realize that something is changing and feel embarrassed or anxious about making mistakes in front of others.

For example, someone who once loved playing cards may stop attending because they can no longer easily remember the rules.

Someone who enjoyed cooking for family gatherings may suddenly avoid hosting because the process has become overwhelming.