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.
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.