Die steigenden Energiepreise durch den Ukraine-Krieg dürften vor allem der Grund für die Heizungskrise im letzten Jahr gewesen sein. In Milionen Haushalten war es nicht richtig wam.
For countries with temperate or colder climates, 18 °C has been proposed as a safe and well-balanced indoor temperature to protect the health of general populations during cold seasons.
And sleeping is about 1/3 of the day, where your metabolism, circulation and breath behave quite differently than during awake times.
If someone feels more comfortable at lower temperatures while awake that is perfectly fine. If all of the population heats less though that will result in more colds.
there is studies that concluded an increased risk of getting colds, when the indoor temperature is consistently below 20 °C
There are indeed studies but they place the low cutoff at 18°C not at 20°.
https://www.ncbi.nlm.nih.gov/books/NBK535294/
There is studies that 16-20C is the optimal temperature for sleeping
And sleeping is about 1/3 of the day, where your metabolism, circulation and breath behave quite differently than during awake times.
If someone feels more comfortable at lower temperatures while awake that is perfectly fine. If all of the population heats less though that will result in more colds.