WHAT KEEPS US HEALTHY & HAPPY? Robert Waldinger - TED talk

 https://www.youtube.com/watch?v=LWcmLY12OnI

WHICH ARE THE 3 CLEAREST MESSAGES/LESSONS AFTER THIS 75 YEARS STUDY?
(you can explain with your own words)
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So, what about you? What can you do to improve your life?
It may be something as simple as:
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Quote from MARK TWAIN:

“There isn't time, so ----------is life, for bickerings, -----------, heartburnings, callings to account. There is only time for -----------, and but an instant, so to speak, for that the good life is built with----------------------------------"