By J. Lang Wood The search for the reasons behind obesity and the most effective methods for losing weight led to the discovery of the leptin hormone in 1994. This hormone is responsible for transmitting messages to the brain about how much energy to use depending on available energy reserves.

published Sep 19, 2017 3:23:38 PM, by Jonathan Ferziger (Bloomberg) — As the Jewish High Holiday season moves in, Israel is getting set to welcome a throng of religious visitors — evangelical Christians. Thousands will pour in from more than 80 countries to the streets of Jerusalem in early October