Happiness and health are deeply connected. When we are happy, our body and mind function better. Many people believe that to be happy, we must first be healthy. But in truth, it often works the other way around—happiness itself can lead to good health. That is why we say, “Happiness is the key to health.”
Scientific studies have shown that happy people tend to live longer, have stronger immune systems, and suffer less from stress-related illnesses. This is because happiness releases positive chemicals in the brain, like endorphins and serotonin, which improve our mood, reduce pain, and protect our heart. In contrast, constant sadness, anger, or stress can weaken the immune system and increase the risk of diseases.
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