Inclusion Criteria:  Aged 18 years old or above Working in local schools or education institutions Willing to participate in mindfulness training voluntarily  Exclusion Criteria:  Have history of neurological or psychiatric disorder, brain injury, birth complications, or significant sensory impairment Currently under medications that are known to affect the brain (e.g. anti-depressants, epileptica, tranquilizer, sleep medication, psychotropics, ritalin, concerta, etc.) Experiencing severe or unstable mental health condition currently Completed 8-week mindfulness training previously Unwilling to go by random assignment