Week 2 Class Lecture Notes

Hi,

This is my week 2 class notes. It is a pdf document, and this is the link of it if you want to see it on website

https://www.canva.com/design/DAFZL9lPKkQ/7-qQWbUD2NGI3BV4BAvo6Q/edit?utm_content=DAFZL9lPKkQ&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton

My class exercise for week 2 is in another post! Please check it.

My Reflection for my Week 2 class, I found out:

Light plays a critical role in regulating the human circadian rhythm, which is the internal clock that controls the sleep-wake cycle and various physiological processes. Exposure to light, particularly in the blue spectrum, can suppress the production of melatonin, a hormone that promotes sleep, and increase alertness and cognitive performance.

Here are some examples of good lighting that can help support circadian living:

Daylight: Exposure to natural daylight can help regulate the circadian rhythm and promote better sleep-wake cycles. Daylight also provides a high color temperature, which is rich in blue light and helps promote alertness and cognitive performance.
Blue-enriched lighting: Artificial lighting that has a higher proportion of blue light can help improve alertness and cognitive performance during the day. For example, using blue-enriched lighting in the workplace can help boost productivity and energy levels.
Warm, dimmed lighting: In the evening or at night, using warm, dimmed lighting can help promote relaxation and support the production of melatonin, which is important for sleep. Warm, dimmed lighting can also help reduce exposure to blue light, which can disrupt the circadian rhythm and suppress melatonin production.
Smart lighting systems: Smart lighting systems that can be programmed to adjust the color temperature and intensity of light can help support circadian living. For example, these systems can be set to simulate the natural daylight cycle, with higher color temperatures and intensities during the day and warmer, dimmer lighting in the evening.

Reference:

Figueiro, M. G., & Rea, M. S. (2016). Light, sleep, and circadian rhythms in older adults with Alzheimer’s disease and related dementias. Neurodegenerative disease management, 6(2), 119-145.

Figueiro, M. G., & Rea, M. S. (2016). Sleep opportunities and constraints for astronauts during spaceflight. Aviation, Space, and Environmental Medicine, 87(10), 959-964.

Thank you for watching my week 2 class notes and reflection posts!