(And they probably cannot afford redoing insulation of where they live either, assuming they even own rather than rent.)
P.S.: The hot water bottle is pretty great, in particular when sick.
Personally, I live in a mild climate where it rarely gets below 50F or over 85F outside, and I just leave the windows open year round and let the house fluctuate between about 60F and 80F, and find it very comfortable without using anything but different clothing. It is interesting that even with all of the windows open the house averages out the evening lows very well, and stays about 10F warmer.
"Cold air inflames lungs and inhibits circulation, increasing the risk of respiratory conditions, such as asthma attacks or symptoms, worsening of chronic obstructive pulmonary disease (COPD), and infection. Cold also induces vasoconstriction, which causes stress to the circulatory system (198) that can lead to cardiovascular effects, including ischaemic heart disease (IHD), coronary heart disease, strokes, subarachnoid haemorrhage and death (198–206). Most of the evidence for the impact of cold on health comes from studies connecting outdoor temperatures to health outcomes. For example, cold spells are associated with increased mortality and respiratory and cardiovascular morbidity (207), and mortality and morbidity rates in countries with cold and temperate climates are higher in winter than in summer (208)."
I doubt they are finding people that do a lot of outdoor winter sports for example have increased health problems vs people that just sit inside.
And then marketing people tried conflating IR saunas with conventional saunas, which nobody has studied and might not have the same efficacy.
I don't know either but I suspect hot air, especially in the lungs is a big part of the mechanism.
The pets love it too!
Main issue is that because it's dining table height, all the standard blankets and futons are too short/small.
Highly recommend it though, it's great. It just needed a voltage converter.
It is, but if a building cools down below the dew point (and it will, unless you're somewhere near the equator), any humidity e.g. from the air you breathe out or from plants will just crash out and condense on the walls, resulting in mold.
I am into sailing and often sail in cold climates without cabin heat- and find that my body heat alone is enough to prevent this from happening in a small sailboat cabin.
My head still moves on the bike, but it's much less. Also, this way I can just raise my desk and slide the bike under, whereas with the treadmill I was unplugging and going to another room which was less convenient. I have a TV dinner tray thing with a secondary wireless keyboard and trackball that sits just above my knees so I can work while I pedal.
And yes it's great for warming up and staying warm all day!
I've supposedly pedaled over 10,000 miles this year, and I've lost over 40 lbs in the process! Never mind keeping warm in New England!
One of the best purchases I've made in a long time!