Sleep is crucial for our health and well-being. Studies show that it's as important for our health as diet and exercise. Poor sleep can lead to chronic illnesses, reduce our body's ability to adapt to exercise, and make it harder to build muscle and burn fat. Our body rejuvenates and gets rid of toxins while we sleep, and it resets our circadian rhythm, which is essential for our hormones to function properly. Chronic stress, blue light exposure, and stimulants can all negatively impact our sleep. Sleep is so important that evolution would have gotten rid of it if it wasn't necessary.