High-end fitness chain Equinox is launching one of the most expensive gym memberships in the world — a $40,000-per-year program aimed at improving overall health and longevity. Equinox is teaming up with lab-test startup Function Health to launch “Optimize by Equinox,” a personalized health program that includes everything from personal training and nutrition plans to sleep coaching and massage therapy. The program, announced Monday, is part of the fast-growing market for longevity and wellness, where the fields of medicine, biotech, fitness and nutrition are merging in the quest to slow the effects of aging. “It’s really a paradigm shift in how we’re able to live with vitality and avoid suffering,” said Jonathan Swerdlin, co-founder of Function Health. “It deals with what’s above the surface, your abs and glutes, which you can see in the mirror that are great. But it also deals with what’s below the surface and what you…
