Messenger substances: The most important hormones in the body.. As of: February 19, 2024, 1:07 p.m By: Laura Knops CommentsPressSplit They are crucial for physical and mental well-being - ten hormones are particularly important.

thyroxine, estrogen, testosterone, insulin, melatonin, oxytocin are examples of messenger substances in the human body that control a variety of processes and thereby keep the body in balance. Even the smallest changes can have big effects.