We already know that our immune system is being affected by our emotions (through the science of psycho-neuron-immunology). Now we are more completely understanding that our organs and cells, right down to the DNA are affected by our self-talk, our visualizations, and the feelings behind them.
In the body, trillions of cells are sending messages amongst themselves! Due to the amazing communication properties of the mind-body connection and that between the cells, every negative thought or emotion or vision has a negative impact upon those cells, and eventually our overall wellness.
Never mind how we got acquired these concepts--that is a discussion for another time. The point is, that we have become so used to holding judgments about or against ourselves that we hardly notice the messages we are sending within. Our diet of negativity is a dangerous daily dose.
WHAT TO DO?
I am suggesting that we adopt a simple compassionate practice of 1. Becoming more aware of what we are saying to ourselves 2. When we identify a negative message (usually we have a bodily reaction along with it) we don't judge ourselves harshly for having the thought in the first place, or judge the thought itself and 3. simply choose to allow that thought, feeling, vision to be, i.e., LET IT BE, don't take it in. This causes the energy powering it to dissipate. Making up more of a story about it just adds more energy to it and encourages it to grow more of its kind. Thinking "I'm not good enough", "I'm not smart enough", "I'm so stupid", "Dumb me", "I don't deserve. . " are examples of the kinds of messages that are like poison to the mind/body mechanism which was meant to thrive.
With practice we will more quickly stem the tide of negative input, and the benefit will reveal itself as more relaxation (as the heart can open more and we breathe more fully) more joy in life (just as it is), warmer relationships (now that we have a toasty one with our Self) and become closer to experiencing the ONENESS with all, that is our birthright.
The latter will expand the positive vibrations into the cosmos, and that can change our world.