Overview

• Priyanshu Tiwari’s social media post celebrating his team coding at 4 AM went viral among tech professionals.
• Johnson warned that blue light exposure at dawn reduces melatonin, fragments deep sleep, raises cortisol and impairs insulin sensitivity.
• His response prompted a split online reaction with some praising the focus on health risks and others accusing him of speaking from wealth privilege.
• Critics highlighted Johnson’s own history of long work hours and his lifestyle in a Venetian villa as weakening his stance.
• Supporters agreed that chronic sleep deprivation clouds cognition and compounds memory and learning deficits over time.