A baby needs up to 17 hours sleep for their rapidly developing brain and body. Sleep helps develop motor skills and dreams help with learning.
The deceptive way caffeine tricks your brain to stay awake
Caffeine can keep you awake, even when you need to sleep by using a hormone called adenosine, which masks the urge to sleep.
What is the circadian rhythm, and how it helps regulate sleep
The circadian rhythm has two parts – wakefulness and sleep. It follows a 24-hour rhythm that tells your body when to sleep and when to wake.