In fact, many are undergoing more demanding total knee replacements that they don't need, according to a report published by Oxford University, in the journal BMJ Open in 2018.

Source: https://www.dailymail.co.uk/health/article-12900249/NHS-arthritis-invasive-knee-operations.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

This includes a 29 per cent increase in the risk of coronary heart disease, and a 32 per cent increased risk of stroke, reported the BMJ in 2016.

Source: https://www.dailymail.co.uk/health/article-12744589/At-25-Fiona-good-job-busy-social-life-suffered-crippling-loneliness-threatening-wreck-health-billions-Britons.html?ns_mchannel=rss&ns_campaign=1490&ito=1490