**Contents**



## **About the Editor**

**David Mart´ın Hidalgo** DVM, Ph.D. After finished his veterinary degree in Caceres (Spain), ´ David Mart´ın was enrolled in the Ph.D. program of the University of Extremadura (Spain). It was during this period (2009–2013) that his interest in the improvement of current ART outcomes grew. Dr. Mart´ın's Ph.D. topic was the improvement of seminal dose conservation at low temperatures using, as the principal strategy, the use of antioxidants. In addition, he participated in the description of AMPK's roles, a master energy sensor, in sperm features of several mammals. Later, looking for a period of postdoctoral specialization, he moved to the University of Massachusetts (USA) where he studied how spermatozoa manage their metabolism during capacitation (2015–2017). Thus, based on sperm energy substrates, he designed a capacitation medium that increases the percentage of hyperactivated spermatozoa, bypassing male subfertility. Because of the importance and experience and knowledge gained during his first postdoc, he performed a second postdoc at the University of Porto (Portugal) (2018–2020) with the final outcome of a patented medium that enhances human sperm capacitation. Currently, he is working at the University of Extremadura (Spain) with the aim of spreading the enhanced capacitation media to other species with issues in achieving fertilization using classic ART procedures.

David Mart´ın also participates in scientific life as a reviewer of different journals, such as: Scientific Reports, Reproduction Fertility Development, Toxicology of Reproduction, Theriogenology, Reproduction and Animal Reproduction Science.
