The Chemistry of Gender Transitions (IMAGE) American Chemical Society Caption With Caitlyn Jenner's recent transition in the news, more attention is being paid to the transgender community. A big part of gender transition is hormone replacement therapy (HRT). This week, Reactions talks about the chemistry of HRT and what happens when the body undergoes major shifts in estrogen and testosterone -- two very powerful hormones. Check it out here: http://youtu.be/l5knvmy1Z3s. Credit The American Chemical Society Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.