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.

Brain and Nervous System, Wellness

Our vagus nerves help us rest, digest and restore. Can you really reset them to feel better?

On social media and in wellbeing circles, people have been talking about the vagus nerve a lot. In fact, we have two vagus nerves – a left and a right – and their optimal functioning is essential for good physical and mental health.

Many social media posts describe ways to reset the vagus nerves to reduce stress and increase calm. These mostly focus on yoga, meditation, deep breathing and cold plunges.

But the vagus nerves also play a part in why socialising, sex and sports are good for our health and wellbeing.

Illustration of a nurse helping an older woman with a cane.
Aging, Brain and Nervous System, Dementia, Diet

Aging with a healthy brain: How lifestyle changes could help prevent up to 40% of dementia cases

By adopting positive lifestyle habits, we could theoretically prevent about 40 per cent of dementias. While there is no guarantee of warding off cognitive decline, people can greatly reduce their risk of dementia by increasing their physical activity levels, ensuring they are mentally active and increasing social contact, while avoiding smoking and limiting alcohol consumption.