Experts Say The 8 Hour Sleep Rule Might Be Wrong
For years, adults have been told that eight hours of sleep is the magic number. But a new review has challenged the idea that everyone needs exactly that much rest to stay healthy. Researchers examining sleep patterns across different societies found that humans may naturally sleep for different lengths of time, and that factors such as light exposure, biology, and sleep timing can also affect our rest. The findings suggest that getting good sleep may be less about chasing one perfect number and more about understanding what your own body needs. A new study found that eight hours isn’t a universal rule, as other factors also shape sleep Unsplash A study published in Brain Medicine on August 25, 2026, examined sleep research from anthropology, history, and other fields to look at how humans slept before modern lifestyles changed the way we live. The researchers challenged the idea that mo
