What happens to your intervertebral discs when you sit?
Sitting in office chairs for long periods of time not only affects your muscles but impacts the disks in your spine.
In humans over 5 years of age, there is no direct blood supply to the jelly like nucleus of the intervertebral discs.
The intervertebral discs therefore rely upon fluid inflow and outflow for their nutrition: when you lie down, the pressure comes off the discs and they expand, absorbing water and nutrients as they do so (rather like a sponge expanding and sopping up a spill on the floor).
Unloaded Disc Filling with nutrient rich liquid
When you stand up, the discs are compressed and their watery component is squeezed out, thus removing waste products at the same time.
Loaded Discs Being Compressed
Similar squeeze/expand cycles are occurring every time that we move, both day and night. This means you must move in order to “feed” your discs and keep them healthy. The disc squeeze/expand cycle is crucial to spinal health. It is well proven that your degenerative disc “disease” progresses faster over time if your discs can’t alternate compression with expansion. As sitting more than half the time at work is associated with herniated discs (or slipped discs) and sciatic nerve pain in those older than 35, so try to get up and move as much as possible.
Related Posts
Muscle cramps during Pregnancy
Previously I have looked at nutritional factors that contribute to muscle cramps, now I want to move on to lifestyle factors. Pregnancy Leg cramps may start to plague you during your second trimester and may get worse as your pregnancy progresses and your belly gets bigger. While these cramps can occur during the day, you'll probably notice them most at night, when they can interfere with your ability to get a good night's sleep. You may want to see a nutritionalist to determine if you are short of calcium and magnesium as inadequate levels of both of these minerals have been associated with muscle cramps during pregnancy. You may also want to
- Avoid standing or sitting with your legs crossed for long periods of time.
- Stretch your calf muscles regularly during the day and several times before you go to bed.
- Rotate your ankles and wiggle your toes when you sit, eat dinner, or watch TV.
- Lie down on your left side to improve circulation to and from your legs.
Foam Rolling Guide – Part 1
What is a foam rolling? A foam roller readily available from the likes of TK Maxx is a tool for self massage. Foam rolling is basically a cheap and easy way of keeping your muscles flexible. How do you foam roll? You place the foam roller under the area you’re targeting and use a gentle, flowing backwards and forwards motion to apply pressure to the area. How does it work? You know how if you visit us for a massage, we apply pressure to release the knots in your muscles. You use the same principle with a foam roller except you use your body weight to apply pressure. Are there any downside to foam rolling? While I fully recommend foam rolling it will never replace the precision and experience of a massage therapist. It can be difficult to target small areas with a foam roller so a spikey ball is a better alternative. How often should you foam roll? The simple answer is as much as you can. When exercising a foam roller should be used both before and after exercise for best results. Please try to remember foam rolling isn’t a chore it’s a therapy you will gain benefits from it!
Headaches – How to tell when they are serious
More than 10 million people in the UK get headaches regularly, making them one of the most common health complaints. The most common treatment is to take a pain killer. In previous blog posts I have explored other treatments including
Most headaches aren't serious and are easily treated. However it is important that anyone with a headache “that is out of the norm” should see their GP as soon as possible. Particularly if the headache is more likely to be serious i.e.:- it occurs suddenly and is very severe – often described as a blinding pain unlike anything experienced before
- it doesn't go away and gets worse over time
- it occurs after a severe head injury
- it's triggered suddenly by coughing, laughing, sneezing, changes in posture, or physical exertion
- you have symptoms suggesting a problem with your brain or nervous system, including weakness, slurred speech, confusion, memory loss, and drowsiness
- you have additional symptoms, such as a high temperature (fever), a stiff neck, a rash, jaw pain while chewing, vision problems, a sore scalp, or severe pain and redness in one of your eyes
