A sense of community: get to know your neighbors, play a team sport or join a club – and keep showing up. Look out for one another.
Have people who depend on you: people live longer, purposeful lives when they have a responsibility in their lives like grandchildren, pets, a job.
Exercise daily – even if it’s 10 minutes.
Share a laugh.
Get up early and greet the sun.
Connect with nature: swim in the ocean, get on a bike, take a brisk walk, walk the dog, go outside and stretch.
Visit the ocean or the mountains: the mountains and the ocean have the same energy. It’s humbling and restorative.
This principle is the most important one:
Be in service to “the other” – The other could be other humans, nature, animals, place.
Photo by 
markbartels.org 
Good post… I will suggest another key to happiness is to be thankful for what you do have, while striving for more and to get better, over focusing on what you don’t have and being mad or down about it.