Read about a study which found that even healthy old people with no diseases can still have low muscle strength, something much needed to prevent falls. In a related article, find out how the lack of muscle strength, not bad posture, is often the cause of neck and back pain. Also in this issue, read about how respiratory ECMO therapy helped an ICU patient with severe pneumonia; a new prostate cancer treatment which involves freezing just the tumour to kill it without harming the healthy cells around it; and a little known therapy known as sacral neuromodulation that helps some types of urinary and faecal incontinence.