Diabetes is a metabolic disease with complex and varied etiology characterized by chronic elevated level of glucose in the blood. Type 2 diabetes accounts for about 90% of all cases of the disease. Diabetes is a civilization disease, affecting a person younger and younger, and therefore with an increase in the number of new cases of the disease increase not only costs of the diagnosis and treatment of diabetes and its complications, but also the costs resulting from premature cessation of employment and unemployment, which affects people suffering from diabetes.

Diabetics often have trouble with finding the appropriate job and those who work are afraid of losing their jobs because of the false belief about their frequent absenteeism and lower productivity.

Performance of work by a diabetic is recommended and beneficial, and only a few professions are not recommended for them. To employee with diabetes can safely work, you must create it with adequate working conditions and education in diabetes must apply to all - not only the patient but also his family, friends and co-workers.

In this article three social psychology theories that allow to predict effectiveness of age diverse teams were presented shortly. Then a cycle of German studies that have identified factors influencing the relationship between age diversity and teams effectiveness were reviewed.  The above factors were respectively discussed. They were: age saliance, age stereotypes, task complexity, age discrimination, appreciation of age diversity, ergonomic working conditions. Practical implications of the cycle of studies were presented.

Working in an office room required to ensure the lowest possible noise. For this purpose, a room should provide a reverberation time RT between 0,4 and 0,6 s. In order to achieve such a standard in regard to acoustic conditions, rooms must have high sound absorption. Minimum sound absorption of open plan office rooms per square meter of floor is 1.1 m². The article presents a method for calculating sound absorption of room according to Polish standards PN-B-02151-4: 2015. An example of use of the two acoustic ceilings with different sound absorption coefficients α has been given. The results of calculation of sound absorption of the room showed that a ceiling with sound absorption α above 0.9 will be sufficient to obtain appropriate acoustic absorption. The given method should always be used when designing and renewal of office rooms.