When you hear the word biohacking , it often brings to mind expensive gadgets, ice baths in the garden, or a cupboard full of supplements. But some of the most effective “biohacks” for your metabolism, energy and long-term health are actually simple, low-cost (or completely free) habits. Even better… they’re things you probably already know. You just need a little reminder and perhaps a nudge to actually do them consistently. What Is Biohacking? Biohacking might sound a bit