Yet on the whole, the niacin flush is associated with beneficial health effects. Niacin specifically activates the high affinity G-protein coupled receptors, GPR109a and b, which then leads to release of a variety of prostaglandins that results in the flush response.
professional courtesy is something to be given by the off duty officer to an on duty officer not the other way around a working cop may use discretion on minor violations without fear of repercussions this consideration is extended to citizens and certainly can also be extended to off duty cops
Senatorial courtesy is an unwritten political custom (or constitutional convention) in the United States whereby the president consults the senior U.S. Senator of his political party of a given state before nominating any person to a federal vacancy within that Senator's state.hen a president nominates a former U.S. senator to an executive branch office, the Senate often is more supportive than they would normally be. This type of courtesy was dealt a serious blow in 1989, when the Senate failed to confirm former U.S. senator John Tower of Texas to be Secretary of Defense.