Prevalence of Insomnia Among Patients with Bronchial Asthma.

Background: Insomnia is commonly reported in patients with asthma. However, the prevalence of insomnia and its relationship to asthma control have not been established.

Objective: To determine the prevalence of insomnia in adults with asthma and to evaluate the association between insomnia and level of asthma control.

The prevalence of sleep disturbance among asthmatic patients in a tertiary care center.

Sleep disturbances are commonly reported by patients with asthma. However, the prevalence of sleep disturbance and its association with the level of asthma control is unknown. The primary objective was to determine the prevalence of sleep disturbance among Saudi adult asthmatic patients attending pulmonary clinics at King Abdulaziz Medical City (KAMC).

Exposure to cell phones reduces heart rate variability in both normal-weight and obese normotensive medical students.

Background: We investigated and compared the effect of the radiofrequency electromagnetic field (RF-EM) emitted by a cell phone on the electrocardiogram and heart rate variability (HRV) of normotensive normal-weight and obese medical students.

Method: Twenty medical student volunteers, normal weight (age = 23 ± 2, BMI = 23.05 ± 1.