To take part, you must first complete this questionnaire that helps us assess your eligibility.
If you are eligible for the study, you will be informed of this upon completion of the questions.
Testing will take place from now (April) until July at the Tobacco and Alcohol Research Group's laboratory.
Once the study has finished, you can be entered into a prize draw where you can win between £10-£50 worth of an online shopping voucher of your choice, as a thank you for your time!