Monitoring smoking behaviour using a wearable acoustic sensor.

Smoking is a cause of multiple health problems resulting in diseases which can also be fatal. It is well known that smoking has long-term impact on the health of an individual as well. While a number of studies have looked at the impact of smoking on health and its economic impacts, most of these rely on input from smokers in the form of questionnaires and surveys.

Pulse oximetry in the neck - a proof of concept.

Oxygen saturation levels are routinely monitored in clinical settings. Pulse oximetry, in transmittance operation mode, is the most common method of estimating oxygen saturation (SpO). This is inexpensive and non-invasive and thus allows for long-term monitoring.