Stress And Anxiety In Relation To Daylight

Cortisol, known also as the 'stress hormone,' is a cortico-steroid hormone produced by the adrenal cortex. It follows a diurnal pattern with high values during the day and low values at night (Hollwich, 1979 Scheer and Buijs, 1999). It also exhibits a seasonal variation, with more stress hormones produced in summer than in winter (Erikson and Kuller, 1983 Kuller and Lindsten, 1992). Abnormally high levels of cortisol increase blood pressure and blood sugar levels, may cause infertility in...