For example, you experience a negative situation where you cannot breathe because of fear or anxiety, then each time you live a similar situation, your cells react automatically and subconsciously you hold your breath. Imagine the effect of fear and anxiety after several years on your body. Now holding this energy in your body may eventually affect an organ and it will not work with its complete potential.
If subconsciously we have stagnated energy in specific body parts (due to our lack of understanding of the dynamics of the human body), then the energy emitted by our body can not resonate at full power or natural frequency level and this energy vibrates at a lower level.
This connection between the mind and the human body can be seen through the different colors in our field of energy and vitality of our bodies. This science is called "Bioenergy of colors."