A self-made millionaire just revealed her best $1K investment—and it's not what you'd expect. Not crypto, not stocks, not a side business. She spent it on a sauna and cold plunge combo from Amazon.

Her reasoning? "Health and wealth are tied." More energy at the start of the day = better performance all day = more money made. Sounds tech bro-ish, sure, but the logic checks out: you can't grind effectively if your body's running on fumes.

The catch: if you're broke, there are free alternatives that work too—meditation, walks, proper sleep, YouTube workouts, staying hydrated. They won't make you rich overnight, but they won't drain your bank account either.

Bottom line: the best investment might not be something you can put in a portfolio. Sometimes it's just keeping your engine running smoothly.