60|A FONDO The influence of light on circadian rhythms Unlike our ancestors, people in today’s society have access to light at any time of day through the efficient lighting systems that have been developed, especially, in the last decade. Concurrently, in the area of biomedical, and in chronobiology specifically, there has been great progress in the study of the effects of light on daily rhythms and the effects that imbalances in the circadian rhythm have in our health.