7 chakras are 7 energy nodes in the body that trap the cosmic pranic energy in a whirl on its way through the spinal cord in case they are not open to let the energy pass through without any resistance in its path, i.e., they are closed which they generally are!
Kundalini Energy: We need to open all 7 chakras by dissolving these fibrous nodes so that they no more trap energy named kundalini which, under its normal flow through the spinal cord, is the mother of all medicine on earth in the name of chakra healing as far as making and keeping the body and the mind in their perfect state of health is concerned.
Chakra Healing: Chakra balancing is the process of opening all 7 chakras by dissolving these fibrous nodes through chakra meditation done under a strict postural discipline making it a way of life 24x7. Chakra healing done through chakra balancing under such a strict postural discipline ends up in a youthful body which is taut, flexible and agile as well as in a peaceful mind which is sharp, sane and relaxed.
Opening chakras tends to eradicate chronic lifestyle diseases like obesity, eye vision problems, constipation, sex problems, back pains, breathing problems, heart condition, hormonal imbalance, hypertension, spondylitis and chronic headaches to name a few.
Opening chakras also tends to unblock the flow of Kundalini through its spinal path in the body, thus spiritually uplifting the level of energy that both, the body and the mind, stay at; taking care of almost all the psychological problems which the majority of humanity is afflicted with, today.
And the good news is that it works at any and every age. Age is simply no bar at all!