Brain Drain refers to the emigration of skilled and educated individuals from a country, causing a loss of human capital. In Morocco, common causes of brain drain include poor work conditions, low salaries, lack of facilities for researchers, and limited opportunities. Effects include slower investment in Morocco as people take their investments abroad, and reduced economic development and growth. Solutions proposed include improving work conditions, salaries, and research facilities, as well as programs to maintain connections with emigrants and recruit them back to share their expertise.