Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Vasodilators
Vasodilators: Agents that act as blood vessel dilators
(vasodilators) and open vessels by relaxing their muscular walls. For example,
nitroglycerin is a vasodilator. So are the ACE (angiotensin converting enzyme) inhibitors.