The lymphatic system includes lymph nodes that work to filter and destroy nasties from our lymph and contain white blood cells called lymphocytes that fight infection. These nodes are what we often refer to as “glands” that become swollen (active) when we are fighting an infection as they trap bacteria and viruses that they can't destroy immediately. Although there are nodes throughout the body, they are mainly in the neck, armpits, groin and abdomen.
Lymph nodes are connected by lymphatic vessels, and some of these vessels are very close to the surface of the skin. Sometimes lymph nodes have to be removed as part of cancer treatment, and when this occurs, there is a lifelong risk of lymphedema.
The buildup of lymphatic fluid in the tissues of the limbs, neck and abdomen can be debilitating and painful and increase the risk of infection in affected areas. The one-way lymphatic system relies on muscular contraction, flexion and compression, respiration, arterial pulse pressure and the natural pull of gravity to maintain tissue fluid balance and promote lymphatic drainage.
Yoga postures, dynamic movement and breathing techniques can all help with these processes. According to Cancer Research UK, “Research has found that exercise and movement can help to lower the risk of developing lymphoedema. Most of this evidence comes from research into lymphoedema and breast cancer.”1
For instance, a research study found that “lymphatic flow and this helps us keep the fluid in our lymphatic system moving back towards our heart, which is the direction we want it moving in.
