In September 2019, Sinclair published Lifespan: Why We Age – and Why We Don't Have To, a New York Times bestseller, co-written with journalist Matthew LaPlante and translated into 18 languages.
On September 2019, Sinclair authored Lifespan: Why We Age – and Why We Don't Have To, which became a New York Times bestseller. The book was co-written by journalist Matthew LaPlante and translated into 18 languages.