The definition of longevity is the amount of time your life or your term of service lasts. An example of longevity is the amount of time you work in a given career. 1  long life; great span of life.  the length or duration of a life or lives.
Online therapy, also known as e-therapy, e-counseling, teletherapy or cyber-counseling, is a relatively new development in mental health in which a therapist or counselor provides psychological advice and support over the Internet. This can occur through e-mail, video conferencing, online chat, or Internet phone.
Gene therapy is a form of therapy that involves inserting one or more corrective genes that have been designed in the laboratory, into the genetic material of a patient's cells to cure a genetic disease.he expression of the new gene or genes can then alter the DNA or RNA transcript used to synthesis proteins and therefore correct the disease. Gene therapy is still in the experimental stages and its use is therefore not yet widespread.