Aprendemas.com (Spain):
En busca de la felicidad: cursos gratuitos y claves para ser feliz /In search of happiness: free courses and keys to be happy
23 August 2017
However, a recent study carried out at the London School of Economics shows that levels of happiness in a person's life follow a U-shaped pattern. This means that between the ages of 20 and 70, The maximum peaks of happiness in the life of any person would correspond with the 23 and the 69 years of age, concretely. Business Insider collated the data mainly based on scientific studies, including from the London School of Economics and MIT, and informal surveys - though the chart cannot conclusively represent the population as a whole.