New research suggests that standing for long periods may not be a healthier alternative to sitting, and could actually increase the risk of circulatory diseases. A study of over 83,000 adults found no association between time spent standing and cardiovascular disease, but did find an increased risk of circulatory diseases with prolonged standing or sitting.

Source: https://www.sciencealert.com/your-standing-desk-might-actually-be-as-bad-as-sitting-all-day