In addition to physical benefits, exercise inspires a brief endorphin rush on par with staring down a grizzly bear or jumping a dirt bike over Evel Knievel. Keep minds and bodies alert with today's Groupon: for $30, new members get a two-month membership, one personal-training session, and a seven-day guest pass at Snap Fitness (up to a $259.90 value). Though not included in today's deal, Groupon users may also purchase a 24/7-access key card for an additional $10 (a $20 value). This Groupon is valid at the Grimes, Ankeny, West Des Moines, Pleasant Hill, Clive, Johnston, Fort Dodge, and Des Moines locations.

Snap Fitness's around-the-clock gyms enable members to work on physical well-being with a cornucopia of equipment. With 24-hour access, members don't have to let The Man or a random street man tell them when to help themselves to Snap's strength equipment or top-of-the-line cardio equipment, which features televisions and other media diversions. Even if you exercise during conventional hours, Snap's friendly, unintimidating atmosphere will provide a refreshing change of pace from any meat-market gym or tough elementary-schoolyard workout. Members also enjoy nationwide access to all Snap Fitness locations, ideal for working out while traveling.

The personal-training session with a certified coach will help members assess and address their fitness goals. Reap the benefit of individual attention as you and a personal trainer tackle weight loss, prepare for an arm-wrestling competition, or unveil the mysteries of arcane cable-weight machines. Bring a friend, family member, or marble bust of a thumb-wrestling nemesis with the seven-day guest pass, which grants your companion access to a week of friendly fitness bonding.