Ageing is inevitable and is influenced by many things – but keeping active can slow ageing and increase life expectancy. Evidence shows that ageing alone is not a cause of major problems until you are in your mid-90s. And strength, power and muscle mass can be increased, even at this advanced age.

Fitbit in February 2019 launched a new fitness tracker, the Inspire, which is available through health and wellness providers only. From a consumer perspective, the Inspire is a fully subsidized (i.e. free) product intended to be distributed in mass quantities and is promoted “as a way to encourage the well-being of health care recipients”. The tracker monitor activity and sleep, calories burned, and prompts wearers with reminders to get