Wanna know why we should have an adequate sleep at night with light off ?

Hi, I am back again with an interesting topic that could amaze you. As we know, sleeping for at least 7-9 hours daily may give us health benefits. It is crystal clear, we all need sleep. But why should it be at night with no light ? The answer is likely not as simple as we imagine. Have you heard about cortisol and melatonin hormone ?  These two substances in our body have really a significant role in maintaining good sleep and its benefits.

We start with melatonin. This one known as a sleep hormone. It usually begins to be produced around 9-10 pm in the dark environment, or in other words is environment without light. What happens when our sleep is not in the evening, but rather in the day because we are night owls, having insomnia phases, or working the night shift ? The answer is it will not be produced by our body.  Melatonin may help protect against heart disease, high blood pressure, diabetes mellitus, alzheimer's, migraine, weight control, strengthen our immune system, and most importantly is in cancer prevention especially against breast cancer and prostate cancer. 

Cortisol is widely known because its essential functions in our body. It affects our endocrine, that means affecting almost all our body processes such as blood sugar, sex hormones, metabolism, digestion, immune system, mood, focus, sleep and mental clarity. It known also as stress hormones because its elevated level when we are stressed. This hormone may be in high level in the day and decrease gradually before bed time. When we do not sleep due to stressed condition, that means because of elevated cortisol, our body starts going into imbalance state. This may be dangerous for our body because we may start to experience digestive issues, hormone imbalances, mood changes, and so on. 

So, at the end, i suggest, we may have to begin to sleep adequately at night without light, so that we could always stay fit during the daytime.