Is there scientific proof that the temperature of water (e.g., above or below room temperature) in our water consumption is connected with any health benefit? Auyrveda testimonials I've seen online seem to say that [usually they seem to discuss drinking hot water in the morning] is connected with helping digestion, but I'm wondering if any scientific / medical studies support that? Have read in other threads here (on the Biology exchange) that "the temperature of the ingested water will not affect the overall hydration of the body" which is helpful. Does this include that it does not affect things like bowel movement and digestive health?
(This question is regarding water only - not with lemon, not tea etc.)