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Yes, tea and coffee can irritate acid reflux in some people, mainly through caffeine and brew compounds that relax the esophageal valve.

Yes, tea can aggravate acid reflux for some people—mostly due to caffeine, mint, or very hot temperatures; test type, strength, and timing.

Yes, tea counts toward daily water intake; its net effect is hydrating for most adults.

Yes, most people on tuberculosis treatment can drink coffee, with smart timing and moderate caffeine.

Yes, tea and coffee can irritate the bladder, mainly due to caffeine, acidity, and serving strength.

Yes—tea bags can go bad and make you sick if they mold or brewed tea stays warm; keep bags dry and chill tea within 2 hours.

No; tea bags don’t cause cancer by themselves, but very hot drinks and some bag materials raise separate concerns.

Yes, tea bags can spoil when they get wet or moldy; dry bags go stale, not unsafe.

Yes, tea bags are safe past the date, but quality drops—use them if dry and clean; discard any with mold, moisture, or off odors.

Yes, tea can be brewed cold or served over ice; flavor, caffeine, and safety depend on method.