Wearable tech helps woman shave seven years off biological age, improve sleep and fitness

A Daily Mail feature recounts how Sarah Fitzmaurice says she shaved seven years off her biological age and now sleeps better and is fitter than ever after adopting the Whoop wearable and its Life membership.

Fitzmaurice began wearing the Whoop MG band in May and reports a VO2 max of 43, elevated heart-rate variability, and markedly improved sleep, even with two young children in the house. Following Whoop’s guidance, she increased daily steps, added weight training several times a week, and pushed into higher heart-rate zones during high-intensity interval workouts. She also notes a new habit of reading on a Kindle before bed, which she links to better sleep. The Whoop app provides menstrual-cycle insights that help her understand how her body changes during each phase and guides when to push hard versus rest. An AI feature called Whoop Coach offers tailored answers on training, nutrition, and other factors relevant to her cycle and goals.

The feature highlights how the Healthspan component shows how different habits may influence ageing, with adjustments such as getting more sleep and improving sleep consistency, increasing daily steps, and maintaining strength training 3–4 times per week. Other recommended practices include spending more time in higher cardio zones (zones 4 and 5) during workouts a couple of times weekly, tuning training to the menstrual cycle, staying hydrated, and limiting alcohol. The MG band adds an ECG monitor and a blood-pressure tracker, though initial readings must be entered manually. The updated devices advertise 14 days of battery life and can be charged while worn, enabling continuous 24/7 tracking. While the wearer acknowledges that a wearable is not a medical device and cannot provide a true biological-age analysis like a genetic test, she says the insights are compelling and she continues to rely on the data to refine her routine.

Whoop unveiled the 5.0 and MG updates earlier this year, describing them as part of a new chapter for the brand. The latest iterations include Healthspan tracking, menstrual-cycle insights, a step counter, VO2 Max, HRV, heart-rate monitoring, and access to Whoop Coach. The Life membership tier adds the MG device, including on-demand ECG readings to flag potential signs of atrial fibrillation and blood-pressure insights once a baseline reading has been established. Users can join teams and compare progress with other Whoop members, a feature that appeals to competitive athletes. The brand markets three 12-month memberships—Whoop One, Whoop Peak, and Whoop Life—with prices starting from about 299, 419, and 629 dollars, respectively, and with the band included in each tier.

The feature also notes practical trade-offs: the Whoop does not include running GPS or a built-in display, so some athletes pair it with separate devices for pace and navigation. In Fitzmaurice’s case, a Garmin Forerunner 965 running smartwatch is used to monitor pace and distance, while Whoop supplies the wellness-oriented data that informs training decisions. She adds that the process can be revealing, particularly when a late-night glass of wine shows up as increased stress on sleep metrics. Yet she remains optimistic about continuing with Whoop as she faces a new decade and what she describes as a growing focus on longevity and resilience. The article frames wearable tech as a practical tool for understanding personal health patterns, rather than a medical substitute, and highlights the importance of routine journaling to connect habits with outcomes.