A new study found a minor difference between blood pressure measurements taken in public spaces compared to those in private offices.

Around 70 decibels is where the risk of hearing loss starts, according to the National Council on Aging. Vacuum cleaners, washing machines and maximum sound from a TV reaches the level found at the public market, while the private office had noise levels lower than a quiet library.

New research challenges traditional blood pressure measurement guidelines by showing that public spaces, even noisy ones, yield BP readings nearly identical to those obtained in quiet, private settings.