Aging, Fitness, Prevention, Seniors

Healthspan versus lifespan: The vital role of muscle in successful aging

The extension of life expectancy in the 20th century and beyond is one of humanity’s greatest achievements. However, it is crucial to draw a distinction between lifespan — the amount of time between birth and death — and healthspan, which is the amount of time during which a person is healthy within their lifespan. Older people are spending more time in poor health, and this represents a major individual and public health burden.

A colourized microscopic image of a cell infected with the Omicron strain of SARS-CoV-2 virus.
Coronavirus, COVID, Seniors, Vaccines

COVID-19 vaccine boosters are the best defence: Older adults shouldn’t rely on previous infection for immunity

We found that those who had battled the BA.1-2 variant of Omicron in early 2022 had a 30-fold higher risk of contracting the BA.5 variant later in the year. That was exactly the opposite of what we, or anyone, would have predicted. What the findings do tell us is that older adults who have had a previous COVID-19 infection shouldn’t rely on that to protect them against reinfection this fall. To protect against severe illness, keeping booster shots up to date is recommended.