SUMMER IS ALMOST UPON US. Can you feel the heat? Our annual Beauty issue is packed with all the information you need to look and feel your best as we head into the warmer months. Our cover star, Demi Lovato, opens up about her struggles with food, body image, and substance abuse, and the road to recovery that inspired her new album (page 138). Elsewhere, we serve up a guide to achieving your ideal beach body (page 178), expert advice on long-term lifestyle changes to maintain your healthiest weight (page 122), and tips on how to safely get a quick energy boost when you’re completely drained (page 120). Bazaar’s Anti-Aging Awards highlight the top rejuvenative products and procedures (page 130), while insiders reveal how to get great legs (page 116)…