Over the short term, TYP led to the decrease of cortisol production. Over the long term, TYP induced higher cortisol production in the morning and lower production in the evening. Those effects contributed to the physical and mental well-being of the participants.

No abstract

Summary:Hypertension is a silent and multifactorial disease. Over two centuries ago, the fi rst device to record blood pressure was developed, making it possible to determine normotension and to establish criteria for hypertension. Since then, several studies have contributed to advance knowledge in this area, promoting signifi cant advances in pharmacological treatments and, as a result, increasing survival of hypertensive people. The main models developed for the study of hypertension and the main fi ndings in the vascular area are included in this review. We considered aspects related to vascular reactivity, changes in the population, and action of beta adrenergic receptors in the pathogenesis of hypertension.

A hidratação adequada permanece sendo uma barreira a se superar. Por conta disso, neste estudo, objetivamos apresentar a resposta do organismo frente às adversidades do ambiente, clima seco, úmido, frio ou calor, estando o indivíduo em atividade ou em repouso. Como complemento para entendimento dos fenômenos fisiológicos envolvidos com a [des]- [re]-[hiper]-hidratação, apresenta-se o sistema renal contextualizando sua relação com o sistema cardiovascular e endócrino. São apresentados conceitos básicos como compartimentos líquidos do organismo, osmolaridade plasmática e urinária, funções dos rins, estímulos da sede. Também é abordado o ajuste fino que o corpo faz frente a situações de excesso (hiper-hidratação) ou falta de água no organismo (desidratação), dando especial atenção para o exercício físico e a importância da [re]-hidratação adequada. Terminando com orientações para que o atleta tenha uma melhora no desempenho tomando para sua rotina hábitos simples e saudáveis.Palavras-chave: hidratação, sais minerais, atividade física.

Undergraduate students experience many levels of stress throughout their university trajectory. The pressure to achieve good results highlight the exams week in the Universities as a stimulus that triggers psychosocial stress and increased release of cortisol. Considering the increasingly experience an undue amount of stress, we aimed in this study to investigate the short- and long-term effects of exams week on HPA axis in undergraduates by the cortisol production. Twenty-eight undergraduates aged 18-24 years from biological sciences during the final exams week at the end of the school year collected hair and saliva for cortisol measures. Hair cortisol was significantly higher in exams month. They exhibited cortisol rhythmicity and preserved CAR (cortisol awakening response) even under psychosocial stress. The exams week is a trigger for psychosocial stress, however, did not generate significant short-term changes in cortisol rhythmicity. Thus, it is evident that young people adapt to the stressful stimulus, avoiding a possible trigger for mental illness.