Researchers at the Technion-Israel Institute of Technology in Haifa have found that the hormone melatonin, sometimes used to beat jet lag, can impair sperm quality. A study found that men with sexual dysfunction have a high level of melatonin in their bodies.
Keep Jewish Stories in Focus.
JTA has documented Jewish history in real-time for over a century. Keep our journalism strong by joining us in supporting independent, award-winning reporting.
The Archive of the Jewish Telegraphic Agency includes articles published from 1923 to 2008. Archive stories reflect the journalistic standards and practices of the time they were published.
