What Is the Ketogenic (Keto) Diet? A Beginner's Guide - Banner Health
How does the ketogenic diet work? The keto diet focuses on eating extremely low amounts of carbohydrates, moderate protein and very high fat. [ ...
epilepsy
Health benefits. The keto diet was originally used as a tool for treating neurological diseases such as <anchor>epilepsy</anchor>. Studies have now shown that the diet can have benefits for a wide variety of different health conditions, such as heart disease, high blood pressure, cancer, Alzheimer’s disease and polycystic ovary syndrome (PCOS).
How Rare Is It to Inherit Epilepsy? | Banner Health
How Rare Is It to Inherit Epilepsy? \| Banner Health

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By [Banner Health](/healthcareblog/authors/banner-health)

January 24, 2022

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# Inherited Epilepsy? It’s Rarer Than You Think

Although it may be hard to believe, until 1956, people with epilepsy [weren’t allowed to get married](https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1528-1157.44.s.6.2.x#page=2) in 17 states in the U.S. due to widespread misunderstandings about epilepsy and its causes—with the last state not repealing the law until 1980. In fact, in 1956, 18 states also provided for the sterilization of people with epilepsy, due to fear of epilepsy being inherited genetically.

That may seem crazy today, but it shows just how much the public believed epilepsy was something that would be passed along to children. It’s usually not, but the false perception lingers. Many people still believe epilepsy is mostly an inherited condition.

We spoke to [Ganesh Murthy](https://doctors.bannerhealth.com/provider/Ganesh+Murthy/1590440), MD, a neurologist specializing in epilepsy with Banner Brain & Spine. He helped set the record straight about epilepsy and genetics and outlined the condition’s most common causes and triggers.

## What causes epilepsy?

According to the National Institutes of Health (NIH), in about half of epilepsy cases, the causes [are not known](https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Hope-Through-Research/Epilepsies-and-Seizures-Hope-Through#3109_4). More broadly, “anything that disturbs the normal pattern of neuronal activity — from illness to brain damage to abnormal brain development — can lead to seizures,” the NIH explained.

The known causes of epilepsy differ depending on the person’s age. The Epilepsy Foundation [broke down the causes](https://www.epilepsy.com/learn/about-epilepsy-basics/what-causes-epilepsy-and-seizures) this way:

In newborns:

- Brain malformations
- Lack of oxygen during birth
- Low levels of blood sugar, blood calcium, blood magnesium or other electrolyte problems
- Inborn metabolism errors
- Intracranial hemorrhage
- Maternal drug use

In infants and children:

- Fever ( [febrile seizures](https://www.bannerhealth.com/healthcareblog/better-me/understanding-my-childs-risks-for-febrile-seizures))
- Brain tumor (rarely)
- Infections

In children and adults:

- Congenital conditions (Down syndrome; Angelman's syndrome; tuberous sclerosis and neurofibromatosis)
- Genetic factors
- Progressive brain disease (rare)
- Head trauma

In seniors:

- [Stroke](https://www.bannerhealth.com/healthcareblog/teach-me/different-strokes-for-different-folks-but-all-are-dangerous)
- [Dementia](https://www.bannerhealth.com/services/alzheimers)
- Trauma

Dr. Murthy added that for seniors, tumors are also a common epilepsy cause. He pointed out that epilepsy arises most often in infancy and childhood, and in later adulthood (above age 55). He said the most common type of epilepsy is [focal epilepsy](https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Hope-Through-Research/Epilepsies-and-Seizures-Hope-Through#3109_9) — or an epilepsy which originates in just one part of the brain — and that this type of epilepsy is usually not inherited. Studies have found genetic epilepsy to make up just [15-20% of cases](https://pubmed.ncbi.nlm.nih.gov/16302871/).

## Common epilepsy triggers

For folks with epilepsy, there are some common triggers to look out for. A trigger isn’t the same as a cause — a trigger comes along once you already have epilepsy and is something that happens fairly consistently before seizures (and happens more often than simply by chance). Triggers, Dr. Murthy explained, lower a person’s “seizure threshold,” which increases their likelihood of having a seizure. Here are some of the most common epilepsy triggers:

- Alcohol consumption
- Alcohol withdrawal
- Stress
- Sleep deprivation
- Dehydration
- Low blood sugar
- Fever
- Hormonal changes associated with the menstrual cycle
- Exposure to toxins or poisons (lead, carbon monoxide, street drugs, excessively large doses of antidepressants or other prescribed medications)
- Non-compliance to medications

Dr. Murthy also mentioned reflex epilepsies, where seizures may be prompted by strobing lights or other specific stimuli.

To determine your triggers, keeping a seizure journal can help you track and identify them.

## Seizure treatment

Because causes and triggers vary so much from person to person, so do treatments. The mainstay in epilepsy treatment is seizure medication. By taking medication, limiting triggers and getting medical help for whatever is causing the seizures in the first place, epilepsy patients can decrease their likelihood of seizures and enjoy improved quality of life. This management will look different depending on the person’s individual causes and triggers.

Dr. Murthy noted that this process often takes time. He assured that epilepsy is a manageable condition, and most patients live full and productive lives. In all cases, patients should work closely with their epileptologist to find what works best for them.

Visit bannerhealth.com to [learn more about epilepsy](https://www.bannerhealth.com/services/neurology/diseases/seizures/epilepsy) and [find a specialist](https://www.bannerhealth.com/physician-directory) in your area. You may also want to read these related articles, written with help from Banner Health experts.

- [Understanding My Child’s Risks for Febrile Seizures](https://www.bannerhealth.com/healthcareblog/better-me/understanding-my-childs-risks-for-febrile-seizures)
- [6 Neurological Conditions and Symptoms You Should Look Out For](https://www.bannerhealth.com/healthcareblog/teach-me/6-neurological-conditions-and-symptoms-you-should-look-out-for)
- [Myth or Fact: Can CBD Oil Help Your Child?](https://www.bannerhealth.com/healthcareblog/teach-me/what-you-need-to-know-about-cbd-use-in-children)

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