Light

There is an increasing body of evidence that human health is affected by environmental factors such as air quality, noise and light. This applies to both indoor and outdoor environments. While there have been several studies looking at homes, offices and work environments, hospital environments are still poorly characterised. Indoor hospital environments are complex, and patients with various health conditions can spend extended periods of time in wards. A number of studies have reported an association of air pollution exposure and a disturbance to sleep. A lack of sleep, or poor and disrupted sleep can impact health. Disturbed sleep therefore can impact a patient's recovery in hospital wards. In addition to the exposure to air pollutants, noise and light levels within the hospital environment can also have an impact on patient health. Inadequate, or a disrupted light and dark cycles can impact the circadian rhythm of the human body, responsible for the sleep cycle. In this study, the investigators aim to characterise these exposures and address the impact of these exposures on the patient sleep. Given the links between sleep and the environmental conditions.

The objective of this clinical trial is to investigate the effect of light exposure on sedation depth during general anesthesia.The primary research questions this study aims to address include: Does light condition affect the dosage of anesthetic medications during anesthesia? By what mechanism does light exposure exert an influence on anesthesia? Participants will be randomly allocated to either the light-shielded group or the non-light-shielded group.Patients in the light-shielded group will wear an eye shield during anesthesia. The following data will be recorded for all patients: Induction drug dosage Induction time Intraoperative anesthetic dosage Emergence time

The aim of this project is to evaluate the effect of a dynamic light in order to improve the circadian rhythm, provide a better sleep and well-being, and in the long run an improved recovery. The primary question is whether dynamic artificial light with circadian stimulus can affect the circadian rhythm. The secondary question is whether this also provides better sleep and well-being. The group that is particularly interesting to study is a geriatric population that is more sensitive to circadian rhythm disorders, sleep disorders and confusion in connection with hospitalization and that can be of particular benefit from this intervention.

Breastfeeding is an important condition for the health of the mother and the baby, which is the most difficult for mothers after birth. Since it is an important practice for both the mother and the baby, the evaluation and reduction of the mother's stress factors can help the hospital to regulate the lighting of the breastfeeding room. In addition, setting the light color temperature to a more appropriate kelvin can make a positive contribution to the hospital in terms of costs. For this purpose, when researchers look at the literature, we have not come across a randomized controlled study examining the effect of the light color temperature applied during breastfeeding on the mother's stress, anxiety, peace and breastfeeding motivation. Researchers' purpose is to determine the effect of the light color temperature applied during breastfeeding on the mother's stress, anxiety, peace and breastfeeding motivation.

Purpose of the research: To determine the effect of light color on stress, anxiety, and psychological well-being during the Nonstress Test in at-risk pregnant women. This research was planned as a single-blind randomized controlled experimental type study by comparing separate groups in the form of experiment-placebo control. Data will be collected with the Introductory Information Form, Psychological Well-being Scale, Perceived Stress Scale (PSS/PSS-14), State Trait Anxiety Inventory (STAI). The NST device is used to follow up pregnant women in the last 3 months of pregnancy, first monthly, then every two weeks and once a week. In other words, the procedure is routinely performed on every pregnant woman who comes for control. It is a device that shows the well-being of the baby and whether the mother has contractions. It is attached to the pregnant woman's abdominal area and does not cause any harm. It is not an invasive procedure. Pregnant women in the last 3 months of pregnancy who come to have NST for follow-up will be randomly selected and divided into 2 groups. A lamp with adjustable light level with Unit Unit Ut-383 Mini Luxmeter (Light Meter) will be placed in the intervention and control groups and the light level of the lamp will be adjusted to 100 lux. NST will be taken under cold (bluish white) light for the control group and under medium warm white (daylight white) light for the intervention group. Pre-test before the application and post-test after the application will be applied. The application is an invasive application that will not disturb the pregnant woman.