London’s Notting Hill is home to a rather novel exercise environment. The private members gym is lined with bookshelves. Clients who complete daily 15-minute workouts average a fat loss of 7.5lbs and muscle gains of 3 lbs, in just 12 days. Exercising for short periods has been shown to stimulate muscle fibres and promote metabolism, while activating the body’s natural growth hormone. Fitness trainers (who are nicknamed after authors, librarians and scholars) are on hand to assist with weights and devise personalised low glycemic dietary plans, to balance the body’s insulin levels. Members can unwind in the reading room, or join a yoga, barre or boxing class. The Library’s sister gyms are Marylebone’s The Clock and The Little Library in Barnes.