Older people may sleep better if they get blue light in the morning. This can help them have more energy for their daily activities. Researchers from the University of Surrey in the UK studied 36 volunteers aged 60 or over. They tested how the volunteers reacted to two-hour sessions of blue and regular white light twice a day over a few weeks.
As people get older, they spend less time outside and more time with artificial light. This can affect their body clocks and sleep. The study found that morning blue light led to better sleep quality and more daily activity, while evening exposure made it harder to fall asleep.
Getting light during the day was also helpful. It increased activity levels and made people go to bed earlier. Blue light has been shown to improve moods and alertness. By using blue light in the morning and getting enough daylight, older adults can sleep better and stay active.
Vocabulary List:
- Volunteers /ˌvɒl.ənˈtɪərz/ (noun): People who offer to take part in an activity or provide a service without being paid.
- Exposure /ɪkˈspoʊ.ʒər/ (noun): The state of being exposed to a particular activity or experience.
- Alertness /əˈlɜrt.nəs/ (noun): The state of being watchful and quick to respond.
- Activity /ækˈtɪv.ɪ.ti/ (noun): The state of being active or engaged in a task.
- Quality /ˈkwɒl.ɪ.ti/ (noun): The standard of something as measured against other things of a similar kind.
- Artificial /ˌɑːr.tɪˈfɪʃ.əl/ (adjective): Made or produced by human beings rather than occurring naturally.
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