Sleep isn’t just eight hours. It’s a biological operating system and most of us are running it on low battery. Dr Mohammed Nami, MD and PhD in cognitive neuroscience and clinical neuropsychology, Associate Professor at The School of Health Sciences and Psychology at the Canadian University Dubai, breaks down why modern life is wrecking our sleep, why women ruminate more at night, how hormones hijack the circadian rhythm, and what actually fixes chronic insomnia.From cortisol spikes to 3:37am wake ups, melatonin myths, sleep debt, naps, brain inflammation, and the link between poor sleep and long term disease, this is the science everyone should understand.