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HGH - Human Growth Hormone and Endorphins increase when you laugh - Improved autoimmune response and reduced Cortisol levels
Laughing is good for you, it increases endorphins by 27 percent and HGH by 87 percent said a study from Loma Linda University. Lee S. Berk, who is from the Department of Health Promotion and Education, [...]

People yawn to cool their brains and stay awake, according to new research from the University of Albany in New York.In addition, when yawning seems to spread through a group of people, this is an ancient ritual with the purpose of maintaining alertness among a team.
These are the findings of a study published in the [...]