You’ve taken a short break from exercise while on holiday and are back feeling, a deactivated protein (called the Piezo1 protein) might be responsible for the sudden increase in exercise intensity. The protein is a blood flow sensor, and when you stop working out, it stops working, which reduces the density of capillaries carrying blood to the muscles. In essence, less oxygen travels to your muscles and it’s this that makes exercise more difficult. The best way to keep this process at bay? Keep moving, even just a little bit.
