Complex sentence: Most research on Reiki is poorly designed and prone to bias and there is no reliable empirical evidence that Reiki is helpful for treating any medical condition, although some physicians have said it might help promote general wellbeing.
Split into simpler sentences: Most research on Reiki is poorly designed and prone to bias. There is no reliable empirical evidence that Reiki is helpful for treating any medical condition, although some physicians have said it might help promote general wellbeing.