Laughter are healthier and happier.
They have improved respiratory health.
Laughter flushes the lungs with fresh air and helps you breathe more deeply. People who love to laugh inadvertently stretch their lungs, increase their heart rate and reinvigorate their entire body when laughing. This is equal to a splash of cool, fresh, rejuvenating water for the respiratory system.
They have lower chances of heart disease.
A study conducted at The University of Maryland found that there is a link between laughter and cardiovascular health. Laughter causes the tissue that composes the lining of blood vessels to expand, allowing for better blood flow. In other words, people who love to laugh improve the function of their blood vessels and increase blood flow. This helps protect their heart from diseases.
be equal to 等于，胜任； 当；
In many respects Asian women see themselves as equal to their men.
Any number to the power of nought is equal to one.
Investors can borrow an amount equal to the property's purchase price.