Over the past decade, a whole industry has grown around teaching people the secrets of happiness. You’ve probably seen shelves full of self-help books, each touting to help you find happiness. There are also courses and programs promising the same. All these may make you wonder how happiness and health are really connected. If people were to take a survey, they would probably rank improving productivity and success higher than boosting their happiness. This is partly because it’s our instinct to pursue things like success, fame, prestige, etc., more than our happiness.However, a growing body of research is making a very convincing case about the importance of happiness in our lives, especially when it comes to our health. It turns out that happiness and health are closely associated.To help you want to re-prioritize happiness, below are four ways happiness is good for your health.
Happiness makes your heart healthier
Research shows that happiness plays a role in improving heart health by lowering the heart rate and blood pressure. One study done in 2005 had participants rate their happiness several times over the course of a day. After 3 years, participants who reported being happier had better blood pressure and lower heart rates than their companions.
These effects add up over time and have a significant influence on heart health. For instance, a 2010 study with over 2000 Canadian participants asked them to rank how happy, angry or stressed they were at work using positive indicators like happiness, contentment, and enthusiasm. They were checked on a decade later, and researchers were surprised to find that those who had reported being happier were less likely to have developed coronary heart disease.
Boost your immune system with happiness
We all know that one grumpy person who always seems sick. According to some studies, your level of happiness can affect your immune system, determining how susceptible you are to illnesses. Take this experiment carried out in 2003. In it, 350 volunteers were exposed to the common cold. Prior to exposure, the participants were interviewed over 2 weeks to find out how much they’d experienced positive emotions including feeling pleased, calm or energetic. After exposure and quarantine, participants who had the most positive emotions prior to the experiment were less likely to have caught a cold. Apparently, negativity really can make you sick.
Happiness is linked to longevity
Positive emotion has even been linked to longevity.
A landmark study on nuns showed that there’s a correlation between happiness and long life. In the study, 180 Catholic nuns wrote autobiographical essays upon entering their convents, and these were later scored for emotional content like gratitude, love or contentment then related to the nuns’ survival to ages 75 to 95. Researchers found that 90% of the most cheerful happiest nuns were alive at 85 compared to only 34% of the least happy ones. While other factors could have been at play, researchers determined that the nuns’ emotional state had an effect on their longevity.
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