Encontrados 2 documentos, a visualizar página 1 de 1
Tobacco and Alcohol Consumption among Adolescents
Ferreira,Maria Margarida da Silva Reis dos Santos; Torgal,Maria Constança Leite de Freitas Paúl ReisThis study analyzes the consumption of alcohol and tobacco among high-school adolescents in the district of Porto, Portugal. The results reveal the following: the majority of respondents do not smoke; smoking starts earlier in the case of girls; smoking increases with age; peer pressure is an important factor influencing smoking; about half of adolescents consume alcohol; boys drink more than girls; the number ...
Pregnancy and its role in breast cancer
Martins, Filipe; Botelho, Maria; Laranjo, Mafalda; Cabrita, António; Torgal, Maria; Oliveira, Carlos deAbstract Early full-term pregnancy is the only recognized factor able to prevent breast cancer. There are several hypotheses to explain the mechanisms of this protection, namely an altered hormonal milieu, a differentiation process or a switch in stem cell properties. To explore them, authors have been using animal models, mainly in rodents. Hormonal administration with estrogen and progesterone was the most w...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||