U.S. tech entrepreneur and longevity influencer Bryan Johnson has added a new experiment to his anti-ageing routine: a dog. The 48-year-old biohacker announced that he had adopted a Belgian Malinois puppy named Katara. Johnson said dog owners have a lower risk of early death, citing research that found an association between dog ownership and longevity. However, the research does not prove that owning a dog directly helps people live longer. #longevity #bryanjohnson #dogs