PET scans and saxitoxin allow researchers to 'see' pain

Scientists have long struggled to understand the science behind pain. At present, most diagnoses rely on subjective methods, such as self-reporting from patients and physical examinations. But there is currently no existing method of measuring pain intensity objectively.Pain is always a subjective experience, as no one really knows how much pain another person is feeling.
Pain / Anesthetics News From Medical News Today

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