Dementia is defined as the inability to remember things or think clearly due to brain abnormalities. There are various types of dementia and Alzheimer is the most common form of it. Many medical conditions, such as depression, diabetes, or sleep deprivation, might impair your memory as well.
Depression
Depression might decrease your ability to concentrate and retain details. In addition, you may sleep too much or too little, lose interest in formerly enjoyable activities, and feel hopeless for long period of time.
Vitamin B12 Deficiency
If you are deficient in B12, you may feel disoriented or "get turned around." Some individuals experience tingling in their arms and legs as well.
Diabetes
Diabetes patients may struggle to maintain the proper balance of insulin and blood sugar in their system. When your blood sugar levels go too low, your body and brain do not have enough fuel to function properly. This is known as hypoglycemia. If it is severe, you may get disoriented while doing even the most basic everyday tasks. You may also get awkward, seem inebriated, or even faint.
Sleep Deprivation
Your capacity to learn new things may be reduced by up to 40% if you haven't slept. Sleep deprivation affects the hippocampus, a region of the brain responsible for the formation of new memories.