Original sentence: Biorhythm is an old, but still speculative subject, whose claim to be scientific is vehemently contested.Some critics of the theory of biorhythm raise one or more of the following criticisms:.Studies in this self-described protoscience are still being done regarding the effects of biorhythm on the human condition.The theory is widely treated as falsely claiming scientific validity (and this position's  supporters' responses range from opposing it as harmful through ignoring it to accepting it as entertainment); see pseudoscience.These discoveries, among others, have shown that people are affected by physiological, emotional and intellectual rhythms (with no known relationships to the supposed biorhythm cycles bearing those names).Through medical research, doctors have found that there are periodicity and rhythms during a person's lifespan, although few doctors believe they correspond to those described as "biorhythms".failure to subject to peer review of its claimed results by qualified expermentalists,.the arbitrary assumption of a neutral baseline.the arbitrary assumption of sinusoidal cycles, and.the improbability of the complex central quantitative assertion of any accurate theory relevant to human behavior being fully and precisely formulated on the basis of a single experiment, prior to any attempt at replication, as biorhythm advocates claim,.the resemblance of biorhythm's predictions to the vague, reassuring, or flattering predictions offered by biorhythm practitioners to those of professional fortune-telling fraud artists,
Edited sentence: Also, critics see the neutral baseline as a dubious assumption.Biochronometry has shown that rhythm and cycles such as the circadian (from the Latin circa and dia; literally, "about a day").Biorhythms is a new speculative area of scientific endeavor.Studies in this protoscience are still being done regarding the affects of biorhythm on the human condition.The theory is treated by some as a type of pseudoscience and, hence, harmless entertainment attracting  little controversy (classifying it in the same league as horoscopes).These discoveries, among others, have shown that people are affected by physiological, emotional and intellectual rhythms.Through medical research, doctors have found that there are periodicity and rhythms during a person's lifespan.[Others consider all forms of pseudoscience harmful.] Critics of the theory point to the fact that the sinusoidal cycle curves as arbitrarily means of measurement