Question

why do we get tired???????​

Answer 1

Answer:

So, when our eyes see light, our brain gets signals that make us feel awake. But when its dark, the signals make us feel tired. This is part of a process called the circadian rhythm. This works like a natural clock in our body.

Answer 2

Answer:

when our eyes see light, our brain gets signals that make us feel awake. But when its dark, the signals make us feel tired. This is part of a process called the circadian rhythm. This works like a natural clock in our body