She served as Undersecretary of Public Health of her country during the first government of Michelle Bachelet between 2006 and 2008, and as National Director of the National Service for the Prevention and Rehabilitation of Drug and Alcohol Consumption of Chile (SENDA) between 2014 and 2015..[2][3][4] She was born in Santiago de Chile, the daughter of Dr. Jorge Amarales Aspinall and Marta Lidia Osorio Perich.

She completed her higher studies in Medicine at the University of Chile in Santiago between 1971 and 1978, and then specialized as a Pediatrician in 1984, and as a Pediatric Bronchopulmonary Specialist in 2004.

In 1969 she was elected Snow Queen during the first edition of the Punta Arenas Winter Carnival, defeating Vivianne Blanlot[8] on that occasion.

[12][13][14] Soon after, in a summary trial at the University of Chile, she was sentenced to repeat a full year of her medical degree charged with being "subversive".

[15] Between 1990 and 1997 she was co-founder and spokesperson for the NGO "Defensa del Bosque Nativo Magallánico" in defense of the native Magellan forest against indiscriminate exploitation.

Together with the NGO, she presented protection appeals in the Court of Appeals of the Region, and subsequently sentenced by the Supreme Court in 1997, initially against the Empresa Magallánica de Bosques (1990-1995), which led to the end of the chip projects in Bahía Catalina in the city of Punta Arenas and later against the "Río Cóndor" project that the Forest Company Trillium Ltda intended to carry out.