Discovery and development of statins walls of people that died from occlusive vascular diseases, like myocardial infarction. The cholesterol was found to be responsible for the thickening of the arterial walls and thus decreasing the radius in the arteries which leads in most cases to hypertension and increased risk of occlusive vascular diseases. In the 1950s the Framingham heart study led by Dawber revealed the correlation between high blood cholesterol levels and coronary heart diseases. Following up from that study the researchers explored a novel way to lower blood cholesterol levels without modifying the diet and lifestyle of subjects suffering with elevated blood cholesterol levels.
Illegal drugs in Puerto Rico the Puerto Rican police have struggled to work together and some commentators have questioned the effectiveness of government drug policy. In the early 1990s, law enforcement began specifically targeting white collar drug users. By 2008 the tension was rising. The start of what some call the "drug war" was in 2009 in a conflict between Police and drug dealers which police wounded and killed two men. This occurred in Naranjito, Puerto Rico, the place where the drug dealers distributed their drugs to many places in Puerto Rico. In the house they found AK-47, M9 pistols and the drugs. Also they