Identifying indoor tanning behavior patterns can help physicians tailor prevention messages, according to a new report. Four types of tanners were identified: special event (tan numerous times over a short period associated with a special event, followed by extended periods of no tanning); spontaneous or mood (non-regular tanners with spontaneous patterns strongly influenced by mood); regular year-round (tan weekly or biweekly) and mixed (have both regular tanning periods and shorter periods associated with special events).