According to Bokalders and Block (2009) some people spend more than 90% of their lives indoors. This represents that those who live or work in buildings can be significantly affected. The materials used in the construction of buildings, including in the interior design of buildings, which provide clean air and bright light are important issues to take into consideration, because their quality has a significant impact on residents. Rostron (2008) argues that the negative effects of a building can have considerable consequences for society: many of those who have suffered from “sick buildings” have complained that their productivity has been reduced by 20%. Therefore, to construct healthy buildings without adverse effects on occupants, complex issues need to be taken into consideration. The aim of this document is to identify how buildings can impact physical and mental health and find solutions that can create better conditions for living and working. Firstly, this document will explain the causes of poor occupant wellbeing and what damage buildings can cause. do for people's health in general, the implications for society will be mentioned. Subsequently, some possible solutions will be suggested and evaluated in terms of effectiveness, cost and availability. Constructing a building is a challenging matter that requires many problems to solve and many decisions to make. Maintaining the balance between architectural design, engineering design and interior design in general is not an easy task. Furthermore, priority should be given to providing a healthy indoor environment to occupants that improves their physical and mental well-being. Reinhold, Afshari, and Gunnarsen (2005, 29) state that there are a variety of factors in the indoor environment......half of the article......loss of sleep, which then results in poor physical and mental health (Åkerstedt and Nilsson 2003, 6-12)InteriorRestorative environmentNature is believed to have a restorative effect on stress. According to Ulrich (1984) patients improve rapidly after surgery if their windows look at the landscape rather than the buildings. Furthermore, it has been found that images of nature can have a restorative effect on patients compared to images of urban sites (Ulrich et al., 1991). Ulrich (1991) reported that patients who were designated a nature-viewing image showed less nervousness; the anodyne requirement was also reduced compared to the control group. Additionally, art sessions have been held for stroke patients at Conquest Hospital in East Sussex and visual art has been noted to help relieve both mental and physical pain..