The "cold water burns calories" myth isn't completely bogus, but it's not your getaway ticket out of daily workouts either. Downing a cup of chilled H2O does compel your body to scorch about 8 extra calories than its room-temperature counterpart, but doing mental math is probably more calorie-burning than that. Nevertheless, if you're sweating buckets during an intense workout or suffering through a cruel summer day, grabbing that ice-cold water is hardly a crime.

Meanwhile, turning the temperature down on your daily shower might not be as insane as you think. Some potential (though not yet scientifically solid) perks include improved mood, enhanced muscle recovery for athletes, decreased inflammation, and even protection against heart disorders and obesity. Alright, cold water, you’re not doing too badly.

But like everything in life, it's not all rainbows and unicorns. Cold water can be a bane for people suffering from achalasia, migraine headaches, or those who might faint or experience decelerated heart rates post a big gulp. Not to mention, plunging headfirst into an ice bath without proper precautions could land you in trouble.

Now, for all you heat lovers - steaming hot water isn't just for your cozy winter nights with hot cocoa. It could potentially ease digestion, alleviate the symptoms of a common cold, and soothe your muscles after an exhausting day. Moreover, a hot bath might just be what you need to destress or ease symptoms of depression. Who knew a bath could be a therapy session?

However, people with certain heart conditions, those above the age of 70, or suffering from hypotension might want to refrain from making their bathroom a sauna. As with everything, moderation, caution, and professional advice are paramount.

In conclusion, the hot versus cold water debate cannot be settled with an outright winner. It's all about your personal health considerations and preferences at the end of the day. So, the next time you reach for that cold glass of water or plan to turn your hot bath into a steam room, remember - it's your call whether you wanna freeze yourself to potential health glory or chill in warm waters, quite literally.