What 7 Things Scientists Learned About Living Beyond 90 Years of Age
Seven years ago, Lesley Stahl hosted a CBS 60 Minutes broadcast about what factors determine which of us will live […]
Aging
90%
COVID-19
Pfizer Vaccine 90% Effective – What Does That Mean?
The big news today was that Pfizer announced that its COVID-19 vaccine is 90% effective. Is this 90% of all
