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Chronic diseases over the years can change and affect your personality. They can make you act in ways that are truly not in your character.





Diseases: Alzheimer’s Disease

Alzheimer’s can affect your thinking, judgment, memory, and decision-making. Confusion brought on by this disease may change how you act. For example, if you were easygoing before, you may now be anxious or more easily annoyed.


Diseases: Parkinson’s Disease

While it might start as a little shakiness in your hand, Parkinson’s eventuallys affect how you walk, talk, sleep, and think.  It becomes more difficult to cope as the disease progresses.


Diseases: Huntington’s Disease

Huntington’s, an illness you’re born with, usually shows up in your 30s or 40s. It damages brain cells and affects every part of your life. Thinking, moods, behavior, change for the worse. And you may not even be aware it’s happening.


Diseases: Multiple Sclerosis (MS)

In MS, your immune system attacks the nerves in your brain and spine. It can cause problems ranging from bladder issues to not being able to walk. Mood changes from euphoria to sadness and back, and you can lose touch with reality.


Diseases: Thyroid Disease

The thyroid makes hormones that regulates the timing of many physical and mental functions. It tells your body how fast or slow to work. If the thyroid malfunctions,  you may become irritable, anxious, and have big mood swings. Memory fails, unclear thinking, and cognitive tasks are also a part of this disease.


Diseases: Brain Tumor In Frontal Cortex

A tumor in your brain’s frontal cortex can affect the areas that handle personality, emotions, problem-solving, and memory. Confusion, memory failure, and severe mood swings are just some of the changes that occur. It can also trigger paranoid thoughts, like thinking people are “out to get you” when they’re not.


Diseases: Cancer

Tumors in the brain and spinal cord aren’t the only ones that can affect personality. Cancer of the pituitary gland which controls your hormone levels, will change personality for the worse.

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