Mental Balance Study

Inclusion Criteria: * 18-75 Exclusion Criteria: * • If participant scores less 12, or less, on the Perceived Stress Scale * Have any pre-existing medical condition/illness which will impact taking part in the study \* NOTE: the explicit exceptions to this are controlled hyper/hypothyroidism, hay fever, high cholesterol and reflux-related conditions * Are currently taking prescription medications \*NOTE: the explicit exceptions to this are contraceptive treatments for female participants, thyroid medications, topical skin treatments and those medications used in the treatment of high cholesterol and reflux-related conditions; and those taken 'as needed' in the treatment of asthma and hay fever * Have high blood pressure (systolic over 159 mm Hg or diastolic over 99 mm Hg). NOTE: that we must measure this in the lab using our blood pressure monitors and can only use our measurements to assess eligibility rather than home or GP readings * Have a Body Mass Index (BMI) outside of the range 18.5-35 kg/m2 * Are pregnant, seeking to become pregnant or lactating * Have learning and/or behavioural difficulties such as dyslexia or ADHD * Have a visual impairment that cannot be corrected with glasses or contact lenses (including colour-blindness) * Smoke tobacco or vape nicotine or use nicotine replacement products (if you have recently quit smoking or using replacements you must have stopped using them altogether for a period of 3 months before participatin…