Which of the following is supported in Tina's sleep hygiene recommendations?

The recommendation to limit screen time or stimulating activities after 8pm is supported in Tina's sleep hygiene advice because engaging with screens—such as smartphones, tablets, and televisions—exposes individuals to blue light, which can interfere with the natural production of melatonin, a hormone that regulates sleep. Furthermore, stimulating activities can heighten alertness, making it more difficult to transition into a state of relaxation needed for sleep. By promoting a calmer environment in the evening, individuals are more likely to experience improved sleep quality and duration, making this recommendation a key component of effective sleep hygiene practices. Proper sleep hygiene emphasizes creating a conducive sleep environment, including winding down prior to bedtime.