During the 1980s the sales and use of all-terrain vehicles (ATVs) was on the rise. Many people used them for recreation, while others started using them on their ranch or farm for work-related purposes. As a result, morbidity and mortality rates also began to climb. It became apparent that the...
Seasonality is defined as a change in mood and behavior with the seasons. Research shows there is a possible connection between vitamin D levels and mood (Murphy & Wagner, 2008; Lansdowne & Provost, 1998). Given that vitamin D is produced when skin is exposed to sunlight and varies with sun...