Struggling with middle-of-the-night wake-ups or early mornings around 4:30 am?...

https://yenkee-wiki.win/index.php/Why_Does_Bright_Light_in_the_Morning_Matter_More_as_You_Age%3F

Struggling with middle-of-the-night wake-ups or early mornings around 4:30 am? Many folks over 50 find their sleep patterns shifting in surprising ways