The Guardian has another interesting study which might well resonate with some members.
I think this line really meshes the paper into thyroid issues:
“We know that a disturbed metabolism is so important in the development of diabetes, so if we have ways to improve that, we should do them,”
Issues with brightness, need for light and darkness, etc., have often been mentioned here.
Pre-diabetes study finds benefit in brighter days and dimmer evenings
Increased light exposure during daytime is shown to help improve blood sugar control
theguardian.com/society/202...
Close relationship of thyroid dysfunction and diabetes