Social media impact on athlete mental health: #RealityCheck.

Competing Interests: Competing interests: CB is an associate editor of the BJSM and a member of the BJSM IPHP Editorial Board. She is a member of the IOC Medical and Scientific Commission and the IPC Medical Committee. VG is chair of the IOC Mental Health Working Group, and MLM, AB, CB, AC, DM, RP and MP are members. MLM is a deputy editor of the BJSM and a member of the BJSM IPHP Editorial Board. RB is the IOC Medical and Scientific Director, LE is the IOC head of Science Activities and an IPHP editor of the BJSM.