Complex sentence: Research into the hypoalgesic effect of swearing has shown that the use of profanity can help reduce the sensation of pain, particularly in people who do not use such words on a regular basis.
Split into simpler sentences: Research into the hypoalgesic effect of swearing has shown that the use of profanity can help reduce the sensation of pain. This phenomenon is particularly strong in people who do not use such words on a regular basis.