What would happen if someone didn't sweat?

If someone didn't sweat, they would likely face difficulties in regulating their body temperature, leading to an increased risk of overheating, especially during physical activity or in hot environments. This condition, known as anhidrosis, can result in heat-related illnesses such as heat exhaustion or heat stroke. Additionally, the inability to sweat can affect skin health and hydration levels, as sweating plays a role in maintaining moisture balance. Proper medical evaluation would be essential for individuals experiencing this issue.