Videos

Video

Fasting induces growth hormone to stimulate hunger

Researchers comment on their discovery that fasting makes growth hormone activate neurones which stimulate hunger

anthropology

How graffiti tensions art

Graffiti movement gave rise to São Paulo's own language

Linguistics

For the survival of indigenous languages

Researchers seek to keep Brazilian native idioms from disappearing

Vídeo

Illegal Amazonia

Landowners in the state of Pará may be resorting to fraud to extract more timber than is allowed

Public health

Visceral leismaniasis gets to the metropolises

Diagnosis difficulties and warmer climate favor disease movement towards large urban centers