Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Despite early failures in the clinic, the idea of anti-aging therapies that purge the body of dying cells is gaining traction with a raft of startups now focused on senescence.
The imminent large-scale rollout of rapid coronavirus tests promises to aid public health responses to COVID-19 — but a rapid home test remains elusive.