Recent research experts from the Harvard School of Public Health indicates that middle-aged people who think positively of his life had higher levels of HDL better protect the heart, as well as lower cholesterol "bad" low density lipoprotein (LDL).
According to the researchers, one reason may be related to the tendency of people who think positively to have maintained weight and a healthy diet.
The researchers analyzed data from 990 people aged between 40 and 70 years who were interviewed and examined in the laboratory. Based on the interviews, participants assessed the degree of optimism that given the scale of 6 to 30 based on the opinions they consider a few sentences.
People with high optimism had also high HDL levels. For every increase of five points in the scale of optimism that has been made, the HDL in the blood increases one milligram per deciliter. The researchers said the number would be three percent lower risk of heart disease. By comparison, regular exercise can reduce the risk of heart disease as much as 6 percent.
Chief study author Julia boeh said the results of this study add to the evidence that mental and physical health are inter-related, and look at the world with optimism having health benefits.
Franz Messerli, a cardiologist from St. Luke's-Roosevelt Hospital in New York who was not involved in the study said that, "still dubious to say optimism causes changes in cholesterol levels. Maybe both can be associated with a third variable, namely lifestyle.
Researchers from Harvard actually had been researching lifestyle factors such as alcohol consumption, diet, and weight loss associated with optimism and fats in the blood. This indicates that people with optimism have a tendency to have a better lifestyle that affect the levels of fat in the body.
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