What are the 4 stages of the sleep cycle?

Have you ever wondered how our bodies know when it’s time to sleep? Although we might feel tired after a long day at work, or the day after partying well into the early hours, our bodies also have a clever internal rhythm to make sure we are prompted to go to sleep - circadian regulation.

Why do people sleepwalk?

When you think of sleepwalking, images of late-night fridge raids or half-naked street wanderings might come to mind. But in reality, sleepwalking can be a serious condition. Why does it happen?

How much sleep do you need each night?

Although sleep keeps us busy for one-third of our lives, sometimes our relationship with it can be a tempestuous one. People who have a turbulent experience with sleep can be left feeling irritable, restless and with a fuzzy head when they don’t get enough shut-eye.

Can’t sleep? Here are 5 tips for better sleep, backed by research

Sleep deprivation can weaken our immune systems, too, making us more susceptible to disease. It can also impact how fast we recover from illness because our bodies can’t properly produce the proteins and antibodies needed to protect us when we’re suffering from a lack of sleep.