Leading experts agree that: "[puberty suppression and subsequent gender affirming hormones] is the most widely accepted and preferred clinical approach in health services for transgender people around the world. The aim of puberty suppression is to prevent the psychological suffering which stems from# undesired physical changes that occur during puberty, and to allow the adolescent time to carefully consider whether or not to pursue further transition when they are eligible." This is also the approach taken by the NHS. Tanner stage two of puberty can begin as early as eight years of age. It is a standard part of the WPATH’s Standards of Care as well as the Endocrine Society’s Clinical Practice Guidelines. To be fully effective, puberty blockers should commence early in the puberty process, not at the age of 16.