Again, working upwards, since the 1960s and 1970s, we've tried, again, desperately to turn off molecules that operate between nerve cells, serotonin, dopamine, and tried to cure depression that way, and that's worked, but then that reached the limit.
Una vez más, trabajando hacia arriba, desde los años 1960 y 1970, de nuevo, hemos intentado, desesperadamente apagar las moléculas que operan entre las células nerviosas, la serotonina, la dopamina, y tratamos de curar la depresión de esa manera,