1Laboratoire de Chimie Organique et des Substances Naturelles, Université de Lomé, Lomé, Togo
2Centre de Recherche sur le Vieillissement, Département de Médecine, Université de Sherbrooke,Sherbrooke, Québec, Canada
*Corresponding author: Gbandjaba Nagba Yendoubé, Laboratoire de Chimie Organique et des Substances Naturelles, Université de Lomé, Lomé, Togo, Tel: 00228 97 80 21 89; Email: firstname.lastname@example.org
Submission: January 18, 2018; Published: January 22, 2018
ISSN: 2578-0093Volume1 Issue5
Our average life expectancy is getting longer at a rate of 3 months every year. By day, we win 6 hours of life expectancy. Human global average life expectancy is 71 years write now. One century before, it was 30 years. In other words, the advancing knowledge of better hygiene, biomedicine, and elimination of the most infectious diseases occurring in youth, vaccine and the good nutrition has led us to discover the aging process and the lengthening of life expectancy. The immediate consequence of the extended life expectancy is represented by the increasing number of older people in developed countries.