In recent years, researchers have considered a potential link between beta-blockers and a decreased risk of cancer. This theory stems from the fact that beta-blockers inhibit the actions of the stress hormone norepinephrine. This, along with studies that found norepinephrine can promote the growth and spread of cancer cells, led researchers to reason that the beta-blockers could have anticancer properties.
However, a recent study published early online in Cancer revealed that the use of beta-blockers showed no reduction of colorectal cancer risk.
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