Questions: Digital Wellness and Screen Time Awareness

Question 1

Why does using a screen in the hour before bed disrupt sleep, even if the content is relaxing?

• A. The mental stimulation of any content keeps the mind too active to transition to sleep
• B. Blue-wavelength light emitted by screens suppresses melatonin production, signaling to the brain that it is still daytime and delaying sleep onset
• C. The posture required to use a screen raises physical tension that takes hours to dissipate
• D. The brightness of screens causes eye fatigue that paradoxically makes falling asleep harder

Answer: (B)

The mechanism is physiological and specific: blue-wavelength light mimics the light signal of daytime, suppressing melatonin — the hormone that regulates sleep onset. This delay occurs regardless of whether the content is stimulating or relaxing. It is not about mental arousal from content (option A); it is about the light signal itself. This is why the same effect occurs whether you are watching something calming or exciting. The fix (flux software, night mode, screen avoidance before bed) targets the light wavelength, not the content type.

Question 2

A person spends two hours scrolling social media and afterwards feels inadequate about their daily life compared to their friends'. The most direct explanation, from a digital wellness perspective, is:

• A. They are experiencing low self-esteem that predates social media use
• B. They spent too much time online, which always produces negative emotions regardless of platform
• C. They are comparing their unfiltered daily reality to others' curated highlight reels — a systematic measurement artifact, not a genuine assessment of relative wellbeing
• D. They need to follow different accounts whose content is more positive

Answer: (C)

Social comparison bias on social media is a measurement artifact: you see everyone else's edited, selected, best-moment presentations, and compare them to your own raw, unfiltered experience. The comparison is structurally unfair — you have access to your own ordinary days but only to others' presented highlights. This produces a reliable sense of deficit that does not reflect actual differences in wellbeing. Option D (follow different accounts) might reduce the frequency of specific triggers but doesn't address the structural issue that curated feeds systematically misrepresent others' lives.

Question 3

Most people significantly underestimate their daily screen time before they measure it with a tracking tool.

• T. True
• F. False

Answer: True

Research consistently shows people underestimate daily screen time by 30–50% before measurement. This is partly because many screen interactions are brief and habitual — checking notifications, glancing at a phone — and don't feel like 'screen time' in the way that watching a movie does. The cumulative total of these small, automatic engagements adds up to far more than intuition suggests. This is why screen time tracking tools are a foundational digital wellness practice: without measurement, people are managing a variable they cannot accurately estimate.

Question 4

Digital wellness means using screens as little as possible and is equivalent to recommending that people avoid technology.

• T. True
• F. False

Answer: False

Digital wellness is not a prescription to minimize screen use — it is a framework for intentional use. The goal is that technology use reflects deliberate choices about attention rather than automatic responses to platform-engineered prompts. Intentional heavy use (a programmer working for hours, a researcher reading) is consistent with digital wellness; unintentional light use (reflexive phone checking every two minutes) is not. The distinction is between use that serves the user's goals and use that serves the platform's engagement metrics.

Question 5

Explain the concept of 'continuous partial attention' as it relates to smartphone use. How does it affect cognitive performance even when you are not actively using your phone?

Model answer: Continuous partial attention is the state in which anticipation of a notification or interruption keeps a portion of working memory occupied even when you are not actively checking your phone. The mere presence of a phone — even face-down — has been shown to reduce available cognitive capacity because part of the brain's attention resources are allocated to monitoring for potential notifications. This makes deep focus harder to sustain even during phone-free work periods, because the habit of interrupted attention has been reinforced so frequently that it operates automatically.

This is why notification audits (selectively disabling non-essential notifications) improve sustained concentration: they remove the anticipatory monitoring load, not just the interruptions themselves. The effect is not about willpower — it operates at the level of automatic attention allocation that has been trained by repeated variable-reward interruptions. Addressing it requires changing the environment (reducing notifications, leaving the phone in another room) rather than simply trying harder to focus despite the phone's presence.