Training in 25°C temperatures isn’t without its risks – heat stroke, dehydration and sunburn are all potential issues, as is bloating. Because of this, the transition into heat training needs to be done gradually, taking necessary breaks and staying hydrated.

When starting out, either decrease the volume or intensity of your normal workout to compensate for the more difficult conditions and then slowly work yourself back up. This means that if you usually do a one-hour boxing session inside, then scale back to 30-40mins for the first two weeks outdoors, or if you usually run a 5km in 30 minutes in the gym, slow down your pace or cut down your distance until you get more used to the conditions. It’s important to know your limitations.

Choose slightly cooler days when starting out and always avoid the triple threat of heat, humidity and direct sunlight. If you’re worried that scaling back will affect your immediate goals – maybe you have a race coming up – then start by adding just one outdoor session a week until you’re able to match your indoor performance.

More generally, start with two outdoor sessions for the first two to three weeks, then start scaling up to your usual volume and intensity. By week five, you should be able to manage three outdoor workouts. From here, you can start heading out in the hotter parts of the day – again avoiding the triple threat.

Training in a heatwave could make you a fitter, stronger and faster runner