[Association between social jetlag and presenteeism in Japanese industry: A cross-sectional study].

Objectives: Research suggests that misalignment of the biological clock and social time, referred to as social jetlag (SJL), can induce physical and mental disorders. SJL may also be associated with presenteeism (i.e.

Health-related behaviors associated with subjective sleep insufficiency in Japanese workers: A cross-sectional study.

Objectives: Sleep disturbances are related to somatic and mental disorders, industrial accidents, absenteeism, and retirement because of disability. We aimed to identify health-related behaviors associated with subjective sleep insufficiency in Japanese workers.

Methods: This cross-sectional study included 5,297 employees (mean age: 43.

[Educational effectiveness of a group health education program in the workplace and an examination of educational methods to promote behavior modification].

Background: It is well-known that health education programs carried out in the work place are useful for employees' health promotion. However, the effectiveness of group health education programs for workers as a population approach is unclear.

Objective: The purpose of this study was to examine the effectiveness of a group health education program in the workplace, and to investigate educational methods which support workers modifying their health behaviors.

Ocular defense mechanisms with special reference to the demonstration and functional morphology of the conjunctiva-associated lymphoid tissue in Japanese monkeys.

In order to define the histological components of ocular defense, the conjunctiva in Japanese monkeys was studied using a whole mount method, light microscopy, and electron microscopy. We investigated the distribution of the conjunctiva-associated lymphoid tissue (CALT) using stereoscopic observations of the conjunctiva immunostained with human leukocyte antigen (HLA)-DR antibody and /or stained with alcian-blue. The outer surface of the conjunctival fornix was lined by sheets of mucus secreting goblet cells, with small epithelial patches without goblet cells, scattered among them.