Ojas is considered to be the physical expression of consciousness. This experience of consciousness is the only source of true happiness. When these feelings are blocked, we look to replace happiness with more sensual means. The desire to live or heal can be lost due to a deep lack of fulfillment. Again the cells begin to function at random.
Stress is probably the biggest factor in the loss of cellular memory.
Stress triggers stress-fighting hormones that can be produced 24 hours a day depending on the severity and duration of the stress. These stress-fighting hormones are degenerative and produce free radicals as waste products, which are believed to be the leading cause of aging, disease, cancer, and death. Stress also creates mental and muscular tension, a compromised blood supply, and an increase in waste production. All these factors curtail circulation and communication on a cellular level. If cells cannot get blood in and waste out effectively, then the communication to and from cells breaks down.