Photoplethysmography (PPG) is an affordable and straightforward optical technique used to
detect changes in blood volume within tissue microvascular beds. PPG technology has …

Heart rate variability (HRV) is a measurement of the fluctuation of time between each
heartbeat and reflects the function of the autonomic nervous system. HRV is an important …

Relative Energy Deficiency in Sport (REDs) was first introduced in 2014 by the International
Olympic Committee's expert writing panel, identifying a syndrome of deleterious health and …

The use of consumer wearable devices (CWDs) to track health and fitness has rapidly
expanded over recent years because of advances in technology. The general population …

Technological advances in sleep monitoring have seen an explosion of devices used to
gather important sleep metrics. These devices range from instrumented 'smart pyjamas' …

Wearable sleep-tracking technology is of growing use in the sleep and circadian fields,
including for applications across other disciplines, inclusive of a variety of disease states …

Sleep monitoring has become widespread with the rise of affordable wearable devices.
However, converting sleep data into actionable change remains challenging as diverse …

The proliferation of physiological sensors opens new opportunities to explore interactions,
conduct experiments and evaluate the user experience with continuous monitoring of bodily …

In the past decade, the study of relationships among nutrition, exercise and the effects on
health and athletic performance, has substantially increased. The 2014 introduction of …

Sleep disorders are symptomatic hallmarks of a variety of medical conditions. Accurately
identifying the specific stage in which these disorders occur is particularly important for the …