In this podcast episode, the focus is on enhancing sleep and wakefulness by exploring the relationship between adenosine, which drives our need for sleep, and our circadian rhythms, or internal body clock. To achieve quality sleep and alertness, it's crucial to manage light exposure effectively. Getting plenty of sunlight in the morning helps regulate cortisol and melatonin levels, while limiting light exposure, especially blue light, in the evening is essential to prevent melatonin disruption. Other helpful strategies include timing your meals and exercise, practicing "non-sleep deep rest" techniques like yoga nidra for relaxation, and considering supplements such as magnesium and theanine—though these should come after you've optimized your light exposure and lifestyle.