A 2026 cross-sectional study involving 428 employed adults found that poor sleepers reported a median 292.8 mg/day of caffeine, compared with 176.1 mg/day among good sleepers, and total caffeine intake still predicted higher Pittsburgh Sleep Quality Index scores after adjustment (β = 0.147, p = 0.003). The source breakdown is the useful part: black coffee, …
Recent research has analyzed the relationship between the use of Anabolic Androgenic Steroids (AAS), sleep quality, and psychological distress. A new study specifically evaluated the effects of anabolic steroids on sleep patterns during both active use and withdrawal phases, among male weightlifters in Norway. Highlights: A large proportion of men using AAS report experiencing sleep …
Most people are unaware of the fact that bright light after sunset probably isn’t healthy, especially if you are suffering from insomnia, dealing with poor sleep quality, or a circadian rhythm disorder. For millions of years, humans functioned without artificial lights, TVs, and other electronics (e.g. cell phone screens). They relied solely on the sunlight …
Sleep paralysis is a phenomenon characterized by an inability to move or speak during sleep, despite conscious or semi-conscious awareness. A typical episode of sleep paralysis is thought to last for minutes, whereas more severe types may persist for hours. Most people experience infrequent short-episodes of sleep paralysis – this is diagnosed as “isolated sleep …