How child mortality fell from 40% to 3.7% in 200 years 
Large study of 20,000 cats and dogs could help pets live longer 
People who read live longer than those who don’t, Yale researchers say
10-second balance test is a powerful predictor of death for older adults
Do optimists really live longer? Here’s what the research says
The age reversal tech that billionaires are banking on
Brain infusions from younger mice revive memory in older ones
Mutations in 16 species reveal clues to human aging
Death: how long are we conscious for and does life really flash before our eyes?
Reversing hearing loss with regenerative therapy