The natural hormone melatonin be reduced or altered in order to slow the metastasis/circulating cancer cells breaking away from the original tumor and forming new tumors without upsetting the natural balances in our bodies by introducing beta blockers
Hormones are chemical substances which are released to the sites where they are needed in order to help regulate the body's internal environment
Learn more about hormones:
https://brainly.com/question/8162998
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