Rest and Move
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Tracking

Tracking on Rest and Move: what they measure well and badly, Heart rate and zones, HRV and readiness scores, VO2 max estimates, Step and calorie accuracy and When tracking stops helping.

Profiles

Fitbit

Fitbit

Fitness tracker · Personal activity and sleep monitoring

Polar

Polar

Wrist-worn fitness tracker · Heart rate, sleep stages, activity...

Whoop

Whoop

United States · 2010s

A Guardian investigation examines whether pricey pillows such as Hästens’s $725 High Firm and Beddoc’s $1,035 Therapeutic...
Tracking

Do $1,000 pillows really improve sleep?

A Guardian investigation examines whether pricey pillows such as Hästens’s $725 High Firm and Beddoc’s $1,035 Therapeutic offer real comfort, drawing on expert advice, consumer anecdotes and price comparisons to show that the best pillow depends on individual sleep habits.

26 Aug 2026
A leading transplant specialist has accused NHS England of creating a fragmented and underperforming system for heart and...
Tracking

Senior doctor criticises NHS over transplant service failures

A leading transplant specialist has accused NHS England of creating a fragmented and underperforming system for heart and lung transplants, citing workforce burnout, last-minute cancellations, and inadequate investment. The doctor calls for systemic reforms to improve outcomes and fairness for patients.

19 Aug 2026