Sun stroke - or heatstroke - and heat exhaustion happen when a person’s body is unable to regulate its own temperature.
Predominantly, when we’re too hot, our body sweats to help us cool down. But if we’re particularly warm, the body may not be able to produce sweat quickly enough to cool us down before we start feeling unwell.
There are some studies that suggest using a sunscreen
can help to keep the body cool in the sun. While it absolutely will not prevent a sun stroke, sunscreen does help to protect your skin from burning, which will of course increase your body temperature.
When choosing a sunscreen, it’s best to choose one that has the highest level of protection against the UVA and UVB rays that burn the skin - so choose a factor 50, such as the NIVEA Protect & Moisture Trigger Sun Spray SPF50.