It doesn’t take very many years of life to amass a medical history. There are immunizations, allergies, medications, and dates of medical procedures. Think of this information as your medical profile.
Having ready access to your medical profile can be convenient when you’re applying for insurance or when you’re asked (yet again!) to fill out forms in a medical provider’s office. More importantly, having ready access to this information can be a life saver should you experience a medical emergency.