While lack of sleep is one of the biggest reasons why people can feel tired, it's not the only explanation. Here are five ...

Generally, it should take 24 to 48 hours to recover from a long run. “More experienced runners who have built a strong ...

A lack of sleep is probably the most obvious (and most common) reason for why we feel exhausted. According to the National ...

However, a new study of European jackdaws shows that this strategy has its limits: when sleep-deprived, these clever, social birds were more likely to fall into deep sleep in both brain halves – even ...

A study on birds finds that when jackdaws are sleep-deprived, they stop sleeping with one eye open and enter deeper sleep, risking safety.

A large Australian study has found that patients prescribed medicinal cannabis experienced lasting improvements in quality of ...

Another key psychological mechanism contributing to sleep procrastination is delay discounting; the favouring of immediate ...

Sometimes energy drinks have the opposite effect and lead to tiredness because you “crash.” Find out why drinks without sugar ...

“Some birds can function surprisingly well on far less sleep than we can, but even that strategy appears to have its limits. We have found that when they’re tired, jackdaws are more likely to ...

Given sleep’s profound impact on well-being, unexplained daytime fatigue and disrupted sleep patterns necessitate a ...

While many people struggle with sleep in the spring due to increased daylight, the environment is rarely the main culprit, ...