HOW STRANGE A NON-STRANGE HEAVY BARYON

We give some general arguments in favor of the large magnitude of matr ix elements of an operator associated with nonvalence quarks in heavy hadrons. In particular, we estimate matrix element [Lambda(b)\<(s)over bar s>\Lambda(b)] to be of order of 1 for Lambda(b) baryon whose vale nce content is bl u, d quarks. The arguments are based on the QCD sum rules and low energy theorems. The physical picture behind of the phen omenon is somewhat similar to the one associated with the large strang e content of the nucleon, i.e. with the large magnitude of the matrix element [p\<(s)over bar s>\p] similar or equal to 1. We discuss some p ossible applications of the result.