The Importance of Our Spinal Curves
The Importance of the Spinal Curves
From a side view, our spines are not straight. They possess this elongated S-shaped curve. We can break it down into four smaller curves. The c-shaped curves of the neck and low back are called lordosis. The reverse c-shaped curves of the mid-back and tailbone are called kyphosis. These curves allow for flexibility as well as support to our body. They keep us balanced and help us stand upright. Our spinal curves give our spine spring-like properties, allowing for shock absorption. If our spine was straight from top to bottom, it would likely experience a lot of stress and tension. It would take on significant wear and tear from constant vibration, twisting, and compression. Maintaining our spinal curves is therefore important. Our activities of daily living can have impacts on the shape of our spine. This can contribute to too much or more often not enough mobility which in turn can cause altered function and pain.
The Cervical Lordosis
Let’s talk a little more about our neck curve, also known as our cervical lordosis. The cervical curve consists of the first seven vertebrae of our spine. It starts at the base of our skull and goes to the base of our neck. This is a secondary curve, which means we weren’t born with it. It develops as we start to gain head control as babies. Normally, this curve should possess a c-shape from top to bottom, measuring 20 to 40 degrees. Having a normal curve allows for optimal neck range of motion and mobility. Our head can be held up without being too heavy. Our joints and discs aren’t compressed; the cervical muscles don’t have to work too hard. The nerves that come from our neck to communicate with our upper body have the space they need.
Stresses on the Curves
However, our neck is subject to many stresses on a daily basis that can impact the shape of our curve. This is where bad habits, lifestyle, and work or school play a big role. We live in a world where everything happens in front of us. The use of our computers, laptops, tablets, and phones typically causes our head to lean forward. On top of that, when we drive or sit at a desk, we reach ahead, causing even more rounding of our shoulders and upper back. Our spine and muscles now have to hold on to a head that is leaning forward and has become much heavier. Our head weighs about 11 pounds. Tilting forward by only 15 degrees can put 27 pounds of pressure on our spine. Depending on how far we lean forward, this poor posture can create up to 60 pounds of pressure on our spine. Sixty pounds! That’s the weight of four bowling balls! After a time, this added pressure becomes chronic leading to neck and upper back pain, strain, tension, and headaches. We may start to feel achiness in our shoulders, arms and even into our jaw.
We can’t go on without talking about text neck. Yes, it’s a thing. Text neck is the term used to describe neck strain and pain experienced from looking down at your cell phone, tablet, or other devices too often and for too long. This is not an adult-only syndrome. As we are all glued to our technology all of the time, we are seeing neck strain and pain in kids as well. In a recent study that evaluated neck pain in children and youth, all participants spent five to seven hours on their phones and handheld devices. They all had their neck bent forward at an angle greater than 45 degrees. And they all reported having neck pain for more than six months that traveled down the back of the neck and shoulders. The constant forward head carriage at a young age can have significant negative impacts on our spinal curves, and therefore our spinal health.
Symptoms associated with text neck include:
- Upper back or neck pain and tension when using a handheld device.
- Nagging or sharp pain in the neck or shoulders as the day progresses.
- General shoulder and chest pain and tightness.
- Intermittent or constant headaches made worse when looking down at a device or using a computer.
- Numbness and/or tingling in the arms or hands.
Our spinal curves are there and develop for a reason. They are important to how we move, how we perform and how we feel. We want to prevent the straightening of our spine and the loss of our normal and healthy curves. That has to start at an early age. Focusing on good posture while limiting the use of devices is key. Keep your spine moving well with regular exercise and stretches. Take care of your spine with chiropractic care and massage therapy. And talk to your chiropractor about ways to improve your posture and maintain healthy spinal curves.