Sunday, August 20, 2017

Nocturnal Seizures





Tomorrow, August 21, 2017, there will be a solar eclipse visible in the United States. It will be very exciting! A solar eclipse occurs when the moon is in line with the Earth and sun and casts a shadow over the Earth. There are four types: total, partial, annular, and hybrid (combination between annular and total). Each has its own characteristics depending on the position of the moon in relation to the sun and Earth.  Because of the upcoming solar eclipse, I have been thinking about nocturnal seizures.

According to EpilepsyAction Australia, there is a strong correlation between epilepsy and the sleep/wake cycle. Seizures most often occur between different sleep cycles or the time from sleep and waking when the electrical activity in the brain is in flux. There are five stages of sleep: 

(1)   Sleep-onset—drowsiness, light sleep, when you start to fall asleep. This stage is usually short.
(2)   Light sleep—Brain activity and heart rate slow down.
(3)   Deep sleep starts—Further slowing of brain activity and heart rate. Short bursts of faster brain energy may occur. If woken up suddenly, you would feel groggy and confused.
(4)   Deep sleep—Deepest sleep. Mainly slow wave activity in the brain. It is difficult to wake someone up in this stage.
(5)   REM (Rapid Eye Movement) sleep—active sleep, dreaming. Blood flow, breathing, and heart rate increase; muscles in a paralysis-like state.

Seizures usually occur in Non-REM sleep, most often in light sleep. They can also happen when you wake up in the middle of the night.  The other common time for nocturnal seizures is within one or two hours of waking up. It makes sense that seizures would happen during non-REM sleep as well as waking up from sleep because the brain is in the process of changing its cycle. Whenever there is any kind of change in electrical activity, that is grounds enough for a possible seizure.

There are some epilepsy syndromes that are characterized by nocturnal seizures. Some of these include Juvenile Myoclonic Epilepsy, Awakening Tonic-Clonic, Landau-Kleffner Syndrome, Benign Rolandic Syndrome, Electric Status Epilepticus of Sleep, and Frontal Onset Seizures.

For people with epilepsy, a good night’s sleep is especially important.  If you are having seizures at night, however, it is almost impossible to get fully rested. As a result, you are more likely to have more seizures during the day as well. Still, there are some steps you can take to sleep better and lower your risk of seizures.  I have listed some here:

1.      Go to sleep at the same time every night; get enough sleep per night.
2.      Follow a regular routine.
3.      Exercise every day.
4.      Do not overexcite yourself in the evening.
5.      Try to avoid sleeping pills. They may worsen the situation.

Be safe and sleep well.


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