How Many Secrets A Man Can Bury With Him?

Keeping secret is very hard; therefore, less people have potential to keep the secrets in secret. Now, this becomes a scientific discussion that how much capacity a man has to keep how many secrets with him.

Scientists have founded that a man only can keep 13 secrets, in which, he can share 8 secrets with his credible friends and 5 out of which he keeps with him till his death and these fives remaining also will be buried with him.
Research has been conducted on more than 2000 volunteers.