The Invisible Reason You Feel Tired at 2 PM (It’s Not Burnout)

A digital CO2 monitor for home office sitting on a minimalist desk next to a laptop, showing air quality readings.

It is 2:00 PM. You have deadlines looming and a backlog of tasks to finish before 5:00. You started the day strong, but right now, your brain feels like it is wading through mud. You can’t focus on the screen. Your eyes feel heavy. You reach for another coffee, hoping it will snap you out … Read more