The video features conjoint twins who are joined in the head. Actually there are 20%chances of survival but the kids Tatiana and Krista have survived and being craniopagus twins, they are connected in the thalamus portion if their brain. So, according to the family they can share the feelings, like vision, taste, etc. It was also proved number of times that they communicate through the brains internally. The phenomenon in their case being their thalamus interconnected makes them unique in the world. The Hogan sisters, Tatiana and Krista are enjoying their life and having loads of fun and have taken the fact of them being conjoint pretty normally.