If you're looking for a vacation that will keep you happy long after it's over, researchers say to try a cruise.
A study by the University of China said cruises are the best at improving your subjective wellbeing, which includes life satisfaction and emotional state of mind.
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The research said vacations on the ocean offer a total escape experience which allows you to be more relaxed.
The study found the long term health benefits could last for up to six months.
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The study also revealed the long term happiness was influenced by the part of the brain which processes the experience of visiting new places.