Friend Recommendation Based on Medical Classification

The world's population is about 8 billion, yet with the advancement of technology and increasing complexity of society, it's becoming more difficult to make new friends.

Even when there are opportunities to meet, it's often hard to maintain a lasting relationship if the compatibility isn't there. However, what if there were opportunities to converse with people who are likely to be more compatible with you, based on emotional and medical knowledge classification? If such opportunities were available, I am certain that everyone's world would become much more enriched.