Herbie Murray
Newborns tend to exhibit twitching and jerking movements while sleeping, which can be alarming for parents. However, these movements are typically benign and considered a normal part of an infant's development. This phenomenon, known as benign neonatal sleep myoclonus, involves involuntary muscle jerks that occur during sleep and immediately cease upon waking. It is believed that these twitches contribute to the baby's sensorimotor development, activating circuits in their developing brains and helping them understand their limbs and their functions. While benign neonatal sleep myoclonus is generally harmless, parents should be vigilant for other symptoms and consult a healthcare professional if they suspect any underlying issues or if twitching persists when the baby is awake, as this could indicate a seizure disorder.
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What You'll Learn
It's a normal part of development
It is perfectly normal for newborns to jerk while sleeping. This is called benign neonatal sleep myoclonus, a rare sleep-related movement disorder that occurs in very young infants, usually between birth and 6 months old. It is characterised by involuntary and repetitive muscle jerks in the trunk, arms, legs, or the whole body. These movements happen during sleep and stop immediately when the infant wakes up.
Babies' nervous systems are not yet fully developed, so they may experience twitching and jerking movements at night and when napping. As babies grow and develop, these movements become more natural and less twitchy. Newborn reflexes, such as the moro reflex or tonic neck reflex, can also cause twitching. These reflexes typically disappear around three or four months.
Researchers believe that twitching during sleep is linked to sensorimotor development. When the sleeping body twitches, it activates circuits throughout the developing brain, teaching newborns about their limbs and what they can do with them. For example, neck twitches during sleep have been linked to the development of head support while awake. As babies start to reach for things, twitching in the wrists and fingers increases.
While it may be alarming for parents to witness, sleep twitching is very common and typically a normal part of a baby's development. It is believed to be a benign condition that does not pose any danger to the baby. However, if you are concerned about your newborn's twitching, it is always best to consult a medical professional.
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It's linked to sensorimotor development
It is perfectly normal for a baby to twitch in their sleep. In fact, researchers believe that these twitches are linked to sensorimotor development.
Twitching during sleep is a benign condition that is a normal part of infant development and does not pose any danger to the baby. These twitches are believed to activate circuits throughout the developing brain, teaching newborns about their limbs and what they can do with them. This is supported by observations that show a relationship between infants' neck twitches during sleep and their ability to support their heads while awake. As infants develop the ability to support their heads, the proportion of neck twitches decreases. Similarly, twitches in the wrists and fingers occur when babies are starting to display reaching behaviors.
Babies' nervous systems are not fully developed, so they may experience twitching and jerking movements at night and when napping. These movements become more natural and less twitchy as the baby grows and develops. While it may be alarming for parents to witness, these twitches are very common and typically a normal part of a baby's development.
While benign neonatal sleep myoclonus is not harmful, some parents find it hard to distinguish it from epilepsy or seizures. If you are concerned about your newborn's twitching in their sleep, it is important to speak to a medical professional.
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It's benign neonatal sleep myoclonus
Benign neonatal sleep myoclonus is a rare sleep-related movement disorder that occurs in very young infants. It is characterised by involuntary and repetitive muscle jerks, termed myoclonus, in the trunk, arms and legs, or the whole body. These movements occur when the baby is very young, usually between birth and 6 months old. The jerks are unique to sleep and always stop immediately when the infant wakes up.
Myoclonic jerks do not appear to be linked to awakenings or transitions between different sleep stages. They are believed to be harmless and benign, with no known long-term implications. However, it is important to differentiate benign neonatal sleep myoclonus from other conditions such as seizures or infantile spasms. While benign neonatal sleep myoclonus is characterised by normal brain activity, seizures are associated with abnormal brain waves.
The exact cause of benign neonatal sleep myoclonus is unknown, but it is suspected to have a genetic component as it may run in families. Researchers have hypothesised that the movements may occur when the protective sheath around a baby's spinal cord has not yet fully developed, allowing impulses that would usually be blocked to reach the body. Additionally, in some cases, myoclonic jerks may be triggered by repetitive noises or rocking motions.
Benign neonatal sleep myoclonus is typically reported in otherwise healthy newborns without signs of neurological compromise. It is important to note that this condition is distinct from neonatal opioid withdrawal, which may require extra care and consideration. While benign neonatal sleep myoclonus is generally considered harmless, it often prompts extensive neurodiagnostic testing due to its dramatic appearance.
In summary, benign neonatal sleep myoclonus is a rare sleep disorder characterised by involuntary muscle jerks during sleep in very young infants. It is believed to be benign and harmless, with no known long-term effects. However, further research is needed to fully understand the condition and its causes.
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It's a response to dreams
A newborn baby's nervous system is not yet fully developed, so it is common for them to experience twitching and jerking movements while sleeping. While it may be alarming for parents to witness, these movements are usually benign and harmless. In fact, researchers believe that these twitches are an important part of a newborn's sensorimotor development, teaching them about their limbs and what they can do with them.
During REM sleep, the body is usually almost completely paralysed. However, babies often exhibit twitching and jerking movements during this stage. These movements are believed to be a response to dreams, similar to the hypnagogic jerks that adults sometimes experience as they are falling asleep. Just as adults may feel their bodies jerk when they are startled by a dream, babies may also physically react to their dreams with twitching movements.
Babies can also experience benign neonatal sleep myoclonus, a rare sleep-related movement disorder characterised by involuntary muscle jerks. These jerks occur uniquely during sleep and always stop immediately when the baby wakes up. They are typically triggered by repetitive noises or rocking and can be difficult to distinguish from seizures. However, unlike seizures, benign neonatal sleep myoclonus is not accompanied by abnormal eye movements or changes in brain activity.
While twitching during sleep is usually benign, there are some cases where it can indicate a more serious issue. If a baby experiences twitching or stiffening when they are awake, it may be a sign of a seizure disorder or other neurological condition. Other concerning symptoms include poor feeding, abnormal skin colour, and trouble breathing. If you observe any of these symptoms, it is important to seek medical advice as soon as possible.
In most cases, however, a newborn's twitching and jerking movements during sleep are simply a response to dreams and a normal part of their development. As babies grow and develop, these movements typically become less frequent and more natural.
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It could be a seizure issue
While it is normal for babies to twitch during sleep, it could be a seizure issue if the twitching or stiffening persists when the baby is awake. Benign neonatal sleep myoclonus is a rare sleep-related movement disorder that causes involuntary muscle jerks in babies during sleep. The jerks are usually symmetrical and can occur in the arms, legs, core, or face, and less commonly, the whole body. The key difference between benign neonatal sleep myoclonus and seizures is that the former does not occur when the infant is awake, and it stops immediately if the infant wakes up during an episode. Additionally, infants with benign neonatal sleep myoclonus display normal brain activity during an episode, whereas seizures are characterised by abnormal brain activity.
Infantile spasms, also known as epileptic spasms, are another type of seizure that can affect babies under 12 months old. They typically occur after the baby wakes up and rarely happen during sleep. These spasms look like brief tensing or jerking spells involving the baby's abdomen, head, neck, arms, and/or legs. They last for one to two seconds and usually happen in a series or cluster. If you suspect your baby is having infantile spasms, it is important to consult a healthcare provider as soon as possible, as early diagnosis and treatment are crucial.
While benign neonatal sleep myoclonus and infantile spasms are two potential seizure-related issues that could cause newborns to jerk while sleeping, it is important to note that there are other similar conditions, such as periodic limb movement disorder (PLMD), that can also involve involuntary movements during sleep. Therefore, if you are concerned about your newborn's jerking movements, it is always best to consult a healthcare professional for proper diagnosis and treatment.
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Frequently asked questions
Newborns jerk in their sleep due to the development of their growing brain, which is linked to sensorimotor development.
Yes, it is normal for newborns to jerk while sleeping. It is a benign condition that is a normal part of infant development and doesn't pose any danger to the baby.
Benign neonatal sleep myoclonus occurs in infants from birth up to 6 months of age.
If your baby is experiencing twitching or stiffening when they're awake, it may be a sign of a seizure. Other signs include abnormal eye movement, trouble breathing, and bluish, purplish, or grayish skin. If you observe any of these symptoms, seek immediate medical attention.
If parents are concerned about their newborn's twitching, they can take a video of the movements and consult their pediatrician. It is important to seek medical advice if the baby is also experiencing poor feeding, colour, or tone, in addition to the twitching.
