For headache, wakefulness, emotional turndown, thinking torpor, fatigable feeling caused by irregularity of central nervous systems because of chronically working on computers.
If you smoke at a specific time and setting, like on the porch at 6pm after dinner, and being a stimulant, it makes everything speed up, including heart rate, blood pressure, and wakefulness.
Of course, sunlight is the best way to trigger this, but studies have even found that bright artificial light in the morning can help stimulate wakefulness.
Alcohol consumption before bed has been proven to actually increase wakefulness and completely disrupt sleep well after the individual has gone to bed.
This condition, known as Fatal Familial Insomnia, places the body in a nightmarish state of wakefulness, forbidding it from entering the sanctuary of sleep.
Let's say you take cocaine at a specific time and setting, like 3pm in the bedroom, and because it's a stimulant, it makes everything speed up, including heart rate, blood pressure, and wakefulness.