why does my leg fall asleep when i sleep

To understand paresthesia, it s important first to understand how the nervous system works. We think of nerve fibers that run through the body as pathways of communication, said, professor of kinesiology and health education
at the University of Texas at Austin. We gather information and bring it to our central nervous system from specialized sensory receptors all over the body. If there s compression of the sensory nerves, we simply don t get any information, so it feels numb. We might feel a thud a mechanical transmission of force telling us we ve run into something but we don t really know where we re touching it. A sleeping limb, then, is really one that s just not in communication with the rest of the body.

This pins and needles sensation is known as. Most of the time, the cause is simple. It may happen if youБve lain on your arm or otherwise put pressure on it. This prevents the blood from flowing correctly to your nerves. Poor positioning may also lead to pressure being placed directly on a nerve. The nerves react to the lack of blood flow or pinching by causing momentary tingling. If you wake up with this feeling, readjust to relieve this pressure. Your arm will generally Бwake up,Б and the tingling will stop. More chronic paresthesia may be a sign of an underlying medical issue.

Possible conditions might include: There are many types of, and they all help maintain cell health and keep you energized. Although many people get enough B vitamins through their diet, some people may also need to take supplements to meet their recommended daily amount. If you arenБt getting enough vitamin B, you may experience paresthesia. This is most common among: people with can be caused by a number of things, including and fluctuating hormone levels during. This can cause swelling to occur throughout the body or it can also be localized in certain body parts. Sometimes this swelling can disrupt circulation and trigger a tingling sensation in the affected area.

If the numbness or tingling is also affecting your hand, it may be caused by. This happens when the median nerve is compressed or pinched. Making the same motions repeatedly, such as typing on a keyboard or working with machinery, can trigger it. If you have diabetes and are experiencing paresthesia regularly, it may be caused by nerve damage. This damage is called, and is caused by persistently high blood sugar levels. Conditions affecting the central nervous system, such as and, can also cause paresthesia. Tumors or growths, particularly those located in the or spine, may also trigger it.

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