] Giles explains that while awareness around sleep has improved, people are still sleeping an hour less than they did 50 years ago. He attributes this to distractions like artificial lighting, phones, and technology. While the body can physically recover from lost sleep, the brain does not regain the same benefits, such as memory consolidation and emotional processing. [09:09] Jan asks Giles to define sleep, referencing Part 2 of his book. Giles shares a definition from Harvard Medical School, describing sleep as a reversible state where activity decreases, external responsiveness drops, and the brain undergoes essential restoration processes. He emphasizes that modern sleep science is still evolving, with ongoing debate about its full impact on cognition, learning, and mental health. [16:09] Giles explains that sleep needs gradually decrease with age, but the change is not dramatic. Factors such as genetics, environment, and personal habits play a role. Some people naturally need less sleep, while others struggle with shifting rhythms over time. He highlights that recognizing these differences is key for leaders managing diverse teams with varied sleep patterns. [23:37] Jan shares his experience in the military, where sleep deprivation was common, but he personally struggled with it. Giles confirms that while some individuals can push through exhaustion, it is not sustainable. He compares chronic lack of sleep to “social jet lag,” disrupting natural rhythms and leading to lower motivation, reduced focus, and diminished quality of work. [27:58] Giles recalls his first experience working in Vietnam, where employees would nap under their desks after lunch. Initially shocked, he later realized it was an effective way to recharge. He contrasts this with Western cultures, where working through lunch is often seen as a sign of dedication. Businesses with global teams need to be aware of these cultural differences to maximize productivity. [36:37] Giles highlights the importance of bedtime routines—consistent sleep schedules, limiting screen exposure, and wind-down activities. He notes that many adults with sleep issues lost their childhood sleep habits after leaving home. Encouraging good routines in children can set them up for long-term sleep success. [41:19] Giles states that 80% of sleep problems can be resolved with behavioral changes, such as reducing screen time before bed, avoiding alcohol late at night, and sticking to a consistent schedule. He advises leaders to treat sleep as a priority, just like diet and exercise, to enhance their performance. [43:14]  And remember, Sleep is that golden chain that ties health and our bodies together. Thomas Dekker   Quotable Quotes “We’ve evolved as a species, but we haven’t evolved to sleep an hour less than we did 50 years ago.”  “Leaders assume their teams are like them. Some love breakfast meetings, some don’t. Some don’t mind late-night emails, others do.”  “The one long sleep is a post-industrial idea. Before factories, people often had two sleeps with a break in between.”  “The French have an expression that translates as ‘the bicycle in your head.’ To sleep well, you have to get off the bicycle.”  “You can survive with bad sleep, but you won’t thrive.”   This is the book mentioned in this book   Resources Mentioned The Leadership Podcast | Sponsored by | Rafti Advisors. LLC | Self-Reliant Leadership. LLC | Giles Watkins Website | Giles Watkins LinkedIn |