Yes, saunas are amazing, but I'd caution your readers to avoid infrared enclosures. While they are cheaper than genuine saunas, you're really not going to get anywhere close to a real sauna experience inside one. There are no hot rocks on which to sprinkle water, and they will never provide the encapsulating heat you'd find in a traditional Scandinavian style sauna. If you're ok with that kind of experience, save the $1000 that you would have spent on an infrared enclosure, go buy a $20-$40 space heater and empty out one of your closets.
Also, you should avoid the hot tub and sauna if you're inebriated. While the sauna is, indeed, hotter, the hot tub is just as dangerous. Alcohol not only dehydrates you, but also makes it harder to tell if you're overheating, and can cause many people to fall asleep too easily. All that combined with the hot water and drowning risk of a hot tub make for a deadly combination.
Also, you should avoid the hot tub and sauna if you're inebriated. While the sauna is, indeed, hotter, the hot tub is just as dangerous. Alcohol not only dehydrates you, but also makes it harder to tell if you're overheating, and can cause many people to fall asleep too easily. All that combined with the hot water and drowning risk of a hot tub make for a deadly combination.