What if we could study people from the time that they were teenagers all the way into old age to see what really keeps people happy and healthy?
Mis oleks, kui saaks jälgida inimeste elukäiku alates varasest noorusest kuni vanaduspõlveni välja? Kui saaksime teada, mis on tegelikult  õnneliku ja tervelt elatud elu saladus?