A wearable device may be provided for detecting cumulative alcohol consumption. Such a wearable device may include an adhesive layer that adheres to skin and that allows sweat from the skin to pass through and a customizable ink layer that reacts irreversibly to change color along a gradient as ethanol is detected in the sweat. The customizable ink continues to increase color intensity along the gradient as ethanol continues to be detected in the sweat over time.

The disclosure provides methods of using biomarkers to predict risk or likelihood and/or prognosis of and/or detect or diagnose substance use disorders or infections and/or monitor progress of substance use disorders and infections.

The disclosure provides methods of using biomarkers to predict risk or likelihood and/or prognosis of and/or detect or diagnose substance use disorders or infections and/or monitor progress of substance use disorders and infections.

An object of the present invention is to make it possible to easily determine a presence or absence of ketosis and/or the possibility of ketosis in an animal on site or the like. Another object of the present invention is to provide an apparatus for performing the determination. A method for determining ketosis according to one embodiment of the present invention includes providing gas detection means with a gas generated from a body fluid collected from an animal (except for humans), and determining ketosis of the animal based on a composition of the gas generated from the body fluid using a response of the gas detection means to the gas generated from the body fluid.

The present disclosure includes a question creating section 21 configured to create a question for a drinking user to answer; an output section 11 configured to present the user with the question; an input section 11 configured to receive an operation by the user of inputting an answer to the question; and a computation section 22 configured to determine an intoxication degree of the user's on the basis of the answer.

The present disclosure includes a question creating section 21 configured to create a question for a drinking user to answer; an output section 11 configured to present the user with the question; an input section 11 configured to receive an operation by the user of inputting an answer to the question; and a computation section 22 configured to determine an intoxication degree of the user's on the basis of the answer.

Systems and techniques for collecting and analyzing breath samples to detect one or more target analytes are disclosed.

Systems and techniques for collecting and analyzing breath samples to detect one or more target analytes are disclosed.

A device and a process detects alcohol in a gas sample, especially in an exhaled breath sample. A measuring chamber (2) receives the gas sample to be tested. Two IR radiation sources (7, 11) are configured to transmit an IR beam each into the measuring chamber (2). Two IR detectors (9, 13) generate a measured value each depending on an incident IR beam. An analysis unit (10) automatically makes a decision on whether or not the gas sample contains alcohol, doing so depending on the two measured values from the two IR detectors (9, 13).

A system and method of monitoring sobriety using a hand-held breath testing device that, on receipt of a user's breath, generates a breath test signal comprising substance content data and user identification data, and wirelessly transmits the breath test signal to a breath test signal receiving station.