There are lots of ways we can look after ourselves and these rest upon 3 core foundations. Sleep, Nutrition, Exercise.
Core Foundation 2: Sleep
Whilst it’s not known exactly what function sleep serves1 it may include: restoration, memory consolidation, cleaning, energy conservation or all of these.
What is known is the impact of sleep deprivation on us including reduced function of the immune system, accidents, cognitive decline, decline in academic performance, poor concentration2, irritability, lack of energy, and more.
This is simply the cycle of sleep and waking in humans, is controlled by the brain (hypothalamus) and impacted by light and darkness. It is also important to keep regular sleep patterns and to wake up at the same time each day.
Circadian rhythm can be disrupted by travel, shift-work, spontaneous parties, all night study sessions, reduced sunlight hours in winter, & mental illness which may cause us to sleep longer or shorter.