The heart chakra is an energy center located in the middle of the chest. The body parts associated with the heart chakra include the heart, breasts, lungs, diaphragm, ribs, chest, thymus, circulatory system, shoulders, arms, and hands. Green healing crystals (including bloodstone) and pink healing crystals (including rose quartz) can help balance to the energy of the heart chakra. Labradorite, which reflects a wide spectrum of colors, is also thought to positively affect the heart chakra and other chakras, as well.
The heart chakra relates to the ultimate guiding principle of universal love for self and for others, which includes kindness, forgiveness, hope, universal consciousness, emotional balance, and empathy.
Spiritual/emotional signs that there may be an imbalance of the heart chakra include despair, hate, envy, fear, jealousy, and anger.
Physical signs that there may be an imbalance of the heart chakra include heart conditions, asthma, lung and breast cancers, pneumonia, and upper back/shoulder problems.