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Description
You can find more information on what chemicals to use, and how often you should measure and adjust your hot tubs level, in our hot tub chemical guide

Older individuals often have reduced nitric oxide production, stiffer blood vessels, and altered responses to vasoactive compounds

J Pineal Res 54(3):303312

10.1038/s12276-021-00710-y 15 De la VegaR

& Specian, R

This results in acetaldehyde levels rising sharply within your body
