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The possible association between coronary artery disease risk factors and drusen was examined in 149 Jewish adults, of both sexes and from different ethnic origins, aged 55 years and above. Areas of drusen were examined 5° and 25° around the macula. Risk factors were examined according to standard procedure used by Lipid Research Clinics. Statistical analysis, including comparison of groups with and without drusen by Student’s t test, Pearson’s correlation coefficient and step-wise multiple regression analysis, showed similar associations. The multiple regression showed a significant association between drusen and diastolic blood pressure in both males and females and association with glucose only in females.

Keywords: Workload perception; Productivity and efficiency enhancement; Physical exercise; Objective and subjective measurement.Five hundred and twenty-two workers from two pharmaceutical factories were randomly assigned to two groups. The first group was exposed to a physical activity programme, 15min each session before lunch, 5 times a week for 7 months. Concurrently, the second group of workers had the same exposure to social activity. Perceived workload, fatigue, and efficiency, as well as rates of productivity were examined before and at the end of the study. Repeated Measures ANOVA was applied to the data The results indicated that, from the outset to the end of the programmes productivity rates remained constant across the whole study in both , groups. However, perceptions of workload increased, and perceptions of fa'tigue decreased significantly in workers of the physical activity group compared to their counter-parts. Subsequently, perceived efficiency increased more in the workers in the physical activity group compared to workers of the social activity group, particularly after lunchtime.

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