«Sweating more means burning more fat»
False
What the evidence says
Sweating is thermoregulation: you lose water, not fat. The weight that drops after sweating a lot comes back once you rehydrate. Waist trainers, sauna suits and hot rooms do not increase real fat loss; only dehydration.
How settled this is
Sweat ≠ fat oxidation; it is a temporary loss of water.