Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
The author shows a clear connection between the amount of energy a person has and the amount of aging he or she does, pointing out that, in medical terms, aging refers to a loss of functioning, not chronology.