Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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consult your doctor prior to use of such products if you ( 1 ) have a medical or heart condition , ( 2 ) are taking any photosensitive medicine , ( 3 ) have epilepsy or are sensitive to flashing lights , ( 4 ) have reduced circulation or bruise easily , or ( 5 ) have tendonitis , carpal tunnel syndrome , or other musculoskeletal disorders . 

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. OPTIONS: ["Unilateral termination", "Contract by using", "Limitation of liability", "Unilateral change", "Content removal", "None", "Choice of law", "Jurisdiction", "Arbitration"].