Nature connectedness is the extent to which individuals include nature as part of their identity. It includes an understanding of nature and everything it is made up of, even the parts that are not pleasing. Characteristics of nature connectedness are similar to those of a personality trait: nature connectedness is stable over time and across various situations. Schultz describes three components that make up the nature connectedness construct: Nature connectedness is the extent to which individuals include nature as part of their identity. It includes an understanding of nature and everything it is made up of, even the parts that are not pleasing. Characteristics of nature connectedness are similar to those of a personality trait: nature connectedness is stable over time and across various situations. Schultz describes three components that make up the nature connectedness construct: These three components make up nature connectedness and are required for a healthy relationship with nature. If an individual feels connected to nature (possibly by spending time in it), they may be more inclined to care about nature, and protect the environment. Recent research has found that nature exposure (and feeling connected to nature at a trait level) provides many benefits to humans such as well-being. Other researchers describe the nature connectedness construct in a simpler manner. For instance, nature connectedness can be thought of as a love of nature (also referred to as emotional affinity toward nature). Similarly, nature connectedness can be defined as how much a person believes they are the same as nature (more specifically, a person's connectivity with nature) or it can be thought of as simply feeling emotionally connected with nature. Nature connectedness (as a construct) is also known as nature relatedness, connectivity with nature, emotional affinity toward nature, or inclusion of nature in self. Although nature relatedness is a stable individual trait, it can change based on one's experience with nature, meaning the more time an individual spends in nature, the more connected they feel to nature and the more concern they may feel for nature. Feeling connected to nature at a state level has many benefits as well such as more positive moods and less negative moods. Even though humans derive many benefits from nature, our modern lifestyles have created a disconnect from the natural environment wherein we spend significantly more time indoors. Some researchers estimate that humans spend up to 90% of their lives indoors. This disconnection from nature can have a negative impact on humans because we are missing out on the beneficial effects of nature. As a result, we are less connected to nature and feel less responsibility to protect this environment. Our relationship with the natural environment can be understood through the concept of biophilia and the biophilia hypothesis. This term is defined as humans' innate need to affiliate with other life such as plants and animals. This essentially means that humans have a desire to be near nature. This built in desire may be the result of spending the majority of our evolutionary history (over 99%) closely connected to nature. Biophilia is genetic meaning those humans who were closely connected to nature throughout history would, presumably, have had better access to food and fresh water. For example, someone who lived close to water, near vegetation, or with a pet as a protector (e.g. dog) would have had survival advantages. Although evolutionary theory is difficult to test, the popularity of camping, hiking, and visiting the zoo, provide support for this theory. In his 1997 book, Kellert proposed that biophilia (or being close to nature) also provides us benefits such as an increase in well-being. Thus, being disconnected from the natural environment should have negative effects on humans' well-being. The construct of nature connectedness is also related to a branch of psychology called ecopsychology. This branch seeks to examine how human well-being is related to the well-being of the natural environment. This theory is based on the idea that the needs of humans and nature are interdependent so human health will suffer if nature does as well. Many daily activities in contemporary society demand directed attention. In order to sustain such, effort is required to gate competing stimuli or thoughts so that one can pay attention. The constant demand of the inhibitory control may cause that directed attention to become depleted and result in attention fatigue. Research in environmental psychology suggests that people's desire for contact with nature serves an important adaptive function, namely, psychological restoration. As yet, it remains to be empirically demonstrated that physical and psychological problems of urban living can arouse restoration needs that continuously maintain and reinforce nature-oriented preferences. One of the important aspects that environment can lead to restoration is that it has the potential to generate fascination to people; it is able to captivate so that the demand for involuntary attention of the person is lowered and the restoration can be performed . In addition to this, it should generate the feeling of being away as an escape from a certain environment or situation; extension , referring to the connection properties and environmental accessibility and compatibility between the characteristics of the environment with the goals and preferences of the individual.