supplements Do we really need to guzzle electrolytes after every workout? What are electrolytes? They’ve become synonymous with exercise, so we take a look at what they actually do, and when you really need them Advnture NewsletterAll the latest inspiration, tips and guides to help you plan your next Advnture!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MOST READ1Wonky weather reports on your Garmin watch? There's now a fix2Coros launches Vertix 2S watch, with its most accurate outdoor climbing mode ever3Casio unveils new limited edition G-Shock watch inspired by rainbow-colored diffuse nebulae4"It's not about you, don’t be selfish" – Honolulu mayor dismayed after hundreds flock to Haiku Stairs before removal5Director Danny Boyle’s 28 Years Later seeking serious runners and cyclists as extras