Mental stress consistently increases heart rate (HR) and blood pressure (BP) in humans, despite inconsistent sympathetic neural responses that include increases, decreases, or no change in muscle sympathetic nerve activity (MSNA). The purpose of the present study was to examine associations between MSNA, BP, and HR responses to mental stress. Leg MSNA, BP, HR, and perceived stress levels were r...

Neurovascular responses to mental stress have been linked to several cardiovascular diseases, including hypertension. Mean arterial pressure (MAP), muscle sympathetic nerve activity (MSNA), and forearm vascular responses to mental stress are well documented in normotensive (NT) subjects, but responses in prehypertensive (PHT) subjects remain unclear. We tested the hypothesis that PHT would elic...

BACKGROUND The incidence of sudden cardiac death increases in populations who experience disasters such as earthquakes. The physiological link between psychological stress and sudden death is unknown; one mechanism may be the direct effects of sympathetic arousal on arrhythmias. To determine whether mental stress alters the induction, rate, or termination of ventricular arrhythmias, we performe...

OBJECTIVE To determine the usual triggers of silent and symptomatic ischaemia. DESIGN Patients wore an ambulatory recorder for 48 hours. The device emitted a tone on detection of ischaemia and patients noted activities, feelings, and symptoms so that ischaemia could be attributed to one of four triggers: physical stress, mental stress, combined physical/mental stress, or no stressor. SETTIN...

objective: the main goal of this study is to compare stressful life events and mental health in coronary heart disease (chd) patients and non-patients. method: in this research, 120 participants (n=68 male, n= 52 female) were divided into two groups of patients (n=60) and non-patients (n=60). they were selected from vali asr hospital of meshginshahr (iran) and completed the general health quest...

the purpose of this study was to examine whether lifestyle-related factors, such as frequency of drinking and smoking, mental stress, sleep duration, economic status, and education level, are associated with obesity (as defined given by the who report on asia) in a selected sample of korean adults.the subjects were 1,566 adults (505 men, 1,061 women) aged over 20 years who visited a public heal...

Of the major diagnostic specimen types, saliva is one of the most easily collected. Many studies have focused on the evaluation of salivary proteins secreted by healthy people and patients with various diseases during responses to acute mental stress. In particular, such studies have focused on cortisol, α-amylase, chromogranin A (CgA), and immunoglobulin A (IgA) as salivary stress markers. Eac...

objective: present study aimed to evaluate the effects of stress, urge and mixed urinary incontinence on the quality of life and mental health of iranian women with urinary incontinence (ui). materials and methods: this was a cross sectional study of quality of life and mental health among women without and with different types of urinary incontinence (n = 140). quality of life (qol) and mental...

Mental stress causes a substantial sympathetic response, thus increasing myocardial blood flow (MBF). However, the effects of mental stress on global CBF have not been elucidated. In this study, changes in CBF and MBF in relation to mental stress were measured by a dual positron emission tomography system that can measure CBF and MBF simultaneously. CBF and MBF were measured in 10 healthy men w...

Stress is a major societal issue with negative impacts on health and economy. Physiological computing offers a continuous, direct, and unobtrusive method for stress level assessment and computer-assisted stress management. However, stress is a complex construct and its physiology can vary depending on its source: cognitive workload or social evaluation. To study the feasibility of physiology-ba...